Goldstone Radar Observations Planning: 2020 SO


Background


2020 SO was discovered on September 17, 2020 by Pan-STARRS 1 at Haleaka on Maui.
This object has a very Earth-like orbit, is approaching with an unusually low
delta-V, and may be the booster from the Surveyor 2 robotic mission to the Moon
that launched in 1966.  

This object is making two large, eccentric orbits around the Earth-Moon system between 
November 2020-March 2021, after which it will drift back into heliocentric space.
During this interval 2020 SO will make two approaches well within one lunar distance
of Earth: 
2020 December 1, distance = 0.00033 au (0.13 lunar distances) 
2021 February 2, distance = 0.0015  au (0.58 lunar distances.


The rise/set times overlap times previously scheduled for Goldstone observations of
2017 WJ16 and 2000 WO107 in late November and we plan to devote some of our time to
observations of 2020 SO.  The principal goals will be to improve the orbit using
radar astrometry and to understand its physical properties in the hope of understanding
whether it is a natural object or old rocket body.

Due to the close approach distances, the observations in November will be bistatic with transmission
at DSS-14 and reception at DSS-13.  Additional observations at Goldstone are possible
on later dates in December, January, and February already scheduled for Ryugu, 2014 SD224, 
1998 OK1, 1993 BX3, 2010 JE87, and 2016 CL136.

Additional astrometry is necessary to reduce the pointing uncertainties sufficiently for
radar observations of this object.  

Wikipedia article on 2020 SO:
https://en.wikipedia.org/wiki/2020_SO



Orbital and Physical Characteristics  
Name                     2020 SO
Asteroid number          not numbered
Discoverer               Pan-STARRS 1
Discovery date           2020 Sep 17
orbit type               Apollo
Close approach distance  0.00033 au   and 0.0015 au
Close approach date      2020 Dec 01  and 2021 Feb 02

semimajor axis           1.035 au
eccentricity             0.0359
inclination              0.14
Orbital period           1.035 years              
perihelion distance      0.9976 au
aphelion distance        1.072 au
MOID                     0.0116 au

absolute magnitude (H)   28.6
diameter                ~10 meters 
optical albedo           unknown
rotation period          unknown
lightcurve amplitude     unknown
pole direction           unknown                  
spectral class           unknown
PHA?                     No

Last update: 2020 October 23

Discovery M.P.E.C.


2020 SO
https://www.minorplanetcenter.net/mpec/K20/K20S78.html


SNR Calculations

Goldstone SNRs

2020 SO:  D = 0.01 km,  P = 0.5 h,  OC albedo = 0.1
                                                          <-- Monostatic--> DSS14 > DSS13
 start date       window       RA, dec   dist   runs      SNR/day   SNR/run   SNR/RTT
2020 Nov 06     02:21-11:17    31,  +3  0.011   1523         58         2
2020 Nov 07     02:18-11:14    31,  +3  0.010   1564         64         2
2020 Nov 08     02:15-11:12    32,  +3  0.010   1608         71         2
2020 Nov 09     02:12-11:09    32,  +3  0.010   1655         80         2
2020 Nov 10     02:08-11:07    32,  +3  0.010   1706         89         2
2020 Nov 11     02:05-11:05    33,  +3  0.009   1761        100         3
2020 Nov 12     02:02-11:03    33,  +4  0.009   1820        110         3
2020 Nov 13     01:59-11:01    33,  +4  0.009   1884        130         3
2020 Nov 14     01:56-11:00    34,  +4  0.008   1955        150         4
2020 Nov 15     01:53-10:59    34,  +4  0.008   2033        170         4
2020 Nov 16     01:51-10:58    35,  +5  0.008   2120        200         5
2020 Nov 17     01:48-10:57    35,  +5  0.007   2217        240         5           
2020 Nov 18     01:45-10:57    36,  +5  0.007   2327        290         6           
2020 Nov 19     01:43-10:57    37,  +6  0.007   2453        350         8           
2020 Nov 20     01:41-10:59    38,  +6  0.006   2600        430         9           
2020 Nov 21     01:40-11:00    39,  +7  0.006   2772        540        11       3   
2020 Nov 22     01:38-11:03    40,  +8  0.006   2978        710        14       3   
2020 Nov 23     01:37-11:07    41,  +9  0.005   3230        950        18       4   
2020 Nov 24     01:37-11:13    43, +10  0.005   3547       1300        24       6   
2020 Nov 25     01:38-11:20    45, +11  0.004   3958       2000        34       8   overlaps 2017 WJ16; 2020 SO not scheduled
2020 Nov 26     01:40-11:30    47, +12  0.004   4518       3200        52      13   
2020 Nov 27     01:44-11:45    51, +14  0.003   5331       5900        87      22   overlaps 2000 WO107; 2020 SO not scheduled
2020 Nov 28     01:52-12:08    55, +16  0.003   6642      13000       170      42   overlaps 2000 WO107; 2020 SO not scheduled
2020 Nov 29     02:06-12:46    62, +20  0.002   9155      43000       480     120   overlaps 2000 WO107; 2020 SO not scheduled
2020 Nov 30     02:40-14:32    79, +27  0.001  16424     360000      3100     770   overlaps 2000 WO107  SCHEDULED 0500-1340
...appears to skip a day due to rapid sky motion...
2020 Dec 02-03  23:41-04:30   346, -26  0.002   4580      36000       560     140   
2020 Dec 03-04  23:43-05:26   355, -22  0.003   3982      11000       190      47   
2020 Dec 04-05  23:44-05:55   359, -19  0.003   3510       5300        97      24
2020 Dec 05-06  23:44-06:13     3, -17  0.004   3167       3000        58      14   
2020 Dec 06-07  23:43-06:26     5, -16  0.004   2910       1900        39      10
2020 Dec 07-08  23:41-06:35     7, -14  0.005   2711       1300        28       7   
2020 Dec 08-09  23:39-06:42     9, -13  0.005   2551        970        21       5   
2020 Dec 09-10  23:37-06:47    10, -13  0.005   2422        750        17       4   
2020 Dec 10-11  23:35-06:51    11, -12  0.006   2314        590        14       3   
2020 Dec 11-12  23:32-06:55    13, -11  0.006   2223        480        11       3   Overlaps Ryugu
2020 Dec 12-13  23:30-06:57    14, -10  0.006   2147        410        10           
2020 Dec 13-14  23:27-07:00    14, -10  0.007   2081        350         8           Overlaps Ryugu/Geminids
2020 Dec 14-15  23:24-07:02    15,  -9  0.007   2025        300         7
2020 Dec 15-16  23:22-07:03    16,  -9  0.007   1977        260         7           Overlaps Ryugu
2020 Dec 16-17  23:19-07:05    17,  -8  0.007   1935        240         6
2020 Dec 17-18  23:16-07:06    18,  -7  0.007   1899        210         5
2020 Dec 18-19  23:14-07:07    19,  -7  0.008   1869        200         5
2020 Dec 19-20  23:11-07:08    19,  -6  0.008   1844        180         5
2020 Dec 20-21  23:09-07:09    20,  -6  0.008   1822        170         4
2020 Dec 21-22  23:06-07:10    21,  -5  0.008   1805        160         4
2020 Dec 22-23  23:03-07:10    22,  -5  0.008   1791        150         4           Overlaps 2014 SD224 briefly
2020 Dec 23-24  23:01-07:11    22,  -4  0.008   1780        140         4
2020 Dec 24-25  22:58-07:11    23,  -4  0.008   1773        140         4
2020 Dec 25-26  22:56-07:12    24,  -4  0.008   1768        130         4
2020 Dec 26-27  22:53-07:12    25,  -3  0.009   1766        130         3
2020 Dec 27-28  22:50-07:13    25,  -3  0.009   1767        130         3           Overlaps 2014 SD224
2020 Dec 28-29  22:48-07:13    26,  -2  0.009   1770        130         3
2020 Dec 29-30  22:45-07:14    27,  -2  0.009   1776        130         3
2020 Dec 30-31  22:43-07:14    28,  -1  0.009   1785        130         3
2020 Dec 31-01  22:40-07:14    28,  -1  0.009   1796        130         3
2021 Jan 01-02  22:38-07:15    29,   0  0.009   1809        130         3
2021 Jan 02-03  22:36-07:15    30,   0  0.009   1825        130         3
2021 Jan 03-04  22:33-07:16    30,   0  0.009   1843        130         3
2021 Jan 04-05  22:31-07:16    31,  +1  0.009   1865        140         3
2021 Jan 05-06  22:29-07:17    32,  +1  0.008   1889        140         4
2021 Jan 06-07  22:26-07:18    33,  +2  0.008   1916        150         4
2021 Jan 07-08  22:24-07:18    34,  +2  0.008   1946        160         4
2021 Jan 08-09  22:22-07:19    34,  +3  0.008   1979        160         4
2021 Jan 09-10  22:20-07:21    35,  +3  0.008   2017        170         4
2021 Jan 10-11  22:18-07:22    36,  +4  0.008   2059        180         4
2021 Jan 11-12  22:16-07:24    37,  +5  0.008   2106        200         5
2021 Jan 12-13  22:15-07:26    38,  +5  0.008   2158        210         5
2021 Jan 13-14  22:13-07:28    39,  +6  0.008   2217        230         5
2021 Jan 14-15  22:12-07:31    41,  +7  0.007   2283        250         6
2021 Jan 15-16  22:11-07:34    42,  +7  0.007   2358        280         6
2021 Jan 16-17  22:11-07:38    43,  +8  0.007   2442        320         7
2021 Jan 17-18  22:10-07:43    45,  +9  0.007   2538        360         8
2021 Jan 18-19  22:10-07:47    46, +10  0.007   2647        410         9
2021 Jan 19-20  22:11-07:53    48, +11  0.006   2774        480        10
2021 Jan 20-21  22:12-08:00    50, +12  0.006   2920        570        11    DSS14>DSS13
2021 Jan 21-22  22:13-08:08    52, +13  0.006   3091        700        13    SNR/RTT
2021 Jan 22-23  22:16-08:17    55, +14  0.005   3294        860        16        4    Overlaps 1998 OK1
2021 Jan 23-24  22:19-08:28    57, +15  0.005   3538       1100        20        5
2021 Jan 24-25  22:24-08:41    61, +17  0.005   3835       1500        25        6
2021 Jan 25-26  22:31-08:57    64, +18  0.004   4204       2000        33        8    Overlaps 1993 BX3
2021 Jan 26-27  22:40-09:17    69, +20  0.004   4672       2900        46       11
2021 Jan 27-28  22:53-09:42    75, +22  0.004   5282       4400        66       16    Overlaps 1993 BX3 briefly
2021 Jan 28-29  23:12-10:16    82, +24  0.003   6102       7400       100       25    Overlaps 1993 BX3
2021 Jan 29-30  23:41-11:03    93, +27  0.003   7241      14000       170       42
2021 Jan 31     00:27-12:11   108, +29  0.002   8854      29000       330       82
2021 Feb 01     01:50-13:48   132, +28  0.002  10977      69000       720      180    Overlaps 1993 BX3
2021 Feb 02     04:17-15:40   168, +20  0.002  12503     150000      1500      370    Overlaps 2016 CL136
2021 Feb 03     07:47-17:07   207,   0  0.001  10498     150000      1600      400
2021 Feb 04     11:09-17:59   239, -17  0.002   6496      54000       730      180
2021 Feb 05     13:34-18:35   261, -26  0.002   3872      17000       290       72
2021 Feb 06     15:05-19:04   277, -29  0.003   2572       6800       140       35
2021 Feb 07     16:01-19:32   288, -30  0.003   1962       3400        79       20
2021 Feb 08     16:35-19:59   296, -30  0.004   1680       2000        51       13
2021 Feb 09     16:57-20:24   303, -30  0.004   1549       1400        36        9
2021 Feb 10     17:10-20:47   309, -30  0.004   1485        980        26        6
2021 Feb 11     17:19-21:08   313, -29  0.005   1452        750        21        5
2021 Feb 12     17:26-21:26   317, -29  0.005   1433        600        17        4
2021 Feb 13     17:30-21:42   321, -28  0.005   1421        490        14
2021 Feb 14     17:33-21:56   324, -27  0.006   1412        410        12
2021 Feb 15     17:34-22:09   327, -27  0.006   1404        350        10
2021 Feb 16     17:35-22:20   329, -26  0.006   1396        310         9
2021 Feb 17     17:36-22:30   332, -25  0.006   1389        270         8
2021 Feb 18     17:35-22:39   334, -25  0.007   1382        240         7
2021 Feb 19     17:35-22:47   336, -24  0.007   1375        210         6
2021 Feb 20     17:34-22:54   337, -23  0.007   1368        190         6
2021 Feb 21     17:32-23:01   339, -23  0.007   1361        170         5
2021 Feb 22     17:31-23:06   340, -22  0.007   1355        160         5
2021 Feb 23     17:29-23:11   342, -22  0.008   1348        150         4
2021 Feb 24     17:27-23:16   343, -21  0.008   1341        130         4
2021 Feb 25     17:25-23:20   344, -20  0.008   1334        120         4
2021 Feb 26     17:22-23:24   346, -20  0.008   1327        120         3
2021 Feb 27     17:20-23:27   347, -19  0.008   1320        110         3
2021 Feb 28     17:17-23:30   348, -19  0.009   1313        100         3
2021 Mar 01     17:14-23:33   349, -18  0.009   1307         94         3
2021 Mar 02     17:11-23:36   350, -18  0.009   1300         88         3
2021 Mar 03     17:08-23:38   351, -17  0.009   1293         83         3
2021 Mar 04     17:05-23:40   351, -17  0.009   1286         78         2
2021 Mar 05     17:02-23:42   352, -16  0.009   1280         73         2
2021 Mar 06     16:59-23:44   353, -15  0.010   1273         69         2

The rotation period of 0.5 h is a guess.  If this object is the booster from Surveyor 2,
then the rotation period could be very different, and the radar albedo (and the SNRs) 
could be several times higher.

The schedules for 1988 XB and 2020 SO do not overlap. Neither does the schedule
for 2018 PK21.


2020 SO ARECIBO SNRs
 start date    window        RA, dec   dist    runs      SNR/day   SNR/run

...Need to add this ...


Track Assignments


DOY  BOA   BOT   EOT   EOA
335        0500  1340        DSS-14   2020 SO  Overlaps 2000 WO107
335        0500  1340        DSS-13   2020 SO  

Goldstone tracks:
     UT       UT          PDT                  Duration Round-trip     
DOY  Date     TX Window   TX Window            hh:mm    time (sec)   SNR/run
335  Nov 30   0500-1340   2100-0540 Nov 29-30   8:40      ~1 second   a lot   RTT varies considerably.  Overlaps 2000 WO107



Arecibo tracks:
UT                      UT          PST                Round-trip  
Date                    TX Window   TX Window          time (sec)  

...We don't know yet if Arecibo observations will be possible due to the cable failure...



Uncertainties

2020 SO
JPL/Horizons solution 25, # obs: 106 (65 days)
2020 Oct 23 

 Date__(UT)__HR:MN     R.A._(a-appar)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2020-Nov-20 00:00 *m   37.65608   6.24453 0.00661977509501     34.013       15.94       57.94       0.011372
 2020-Nov-21 00:00 *m   38.62590   6.82450 0.00626078825269     42.871       18.03       65.52       0.011992
 2020-Nov-22 00:00 *m   39.74996   7.49091 0.00588442454848     54.942       20.57       74.76       0.012697
 2020-Nov-23 00:00 *m   41.06671   8.26292 0.00548788625160     71.735       23.74       86.28       0.013508
 2020-Nov-24 00:00 *m   42.63150   9.16758 0.00506778248521     95.718       27.79      101.00       0.014453
 2020-Nov-25 00:00 *m   44.52812  10.24478 0.00461982484576    131.184       33.15      120.50       0.015574
 2020-Nov-26 00:00 *m   46.89126  11.55639 0.00413829538711    186.138       40.58      147.47       0.016937
 2020-Nov-27 00:00 *m   49.95431  13.20459 0.00361500174363    276.857       51.48      187.11       0.018650
 2020-Nov-28 00:00 *m   54.15562  15.37081 0.00303680310501    439.210       67.48      245.25       0.020904
 2020-Nov-29 00:00 *m   60.30924  18.38107 0.00238213515559    789.461       76.86      279.36       0.023695
 2020-Nov-30 00:00 *    71.43042  23.11949 0.00162657157207   2048.678      147.64      536.61       0.028495
 2020-Dec-01 00:00 *   114.73580  30.80874 0.00067692011884  12572.420      432.63     1572.39       0.035551
 2020-Dec-02 00:00 *   315.46257 -35.73230 0.00086468897564   4340.166      431.10     1566.83       0.034253
 2020-Dec-03 00:00 *   345.48049 -26.46494 0.00176778588867    571.243      137.24      498.78       0.025713
 2020-Dec-04 00:00 *   354.80117 -21.91305 0.00248460660907   1140.934       43.13      156.74       0.021928
 2020-Dec-05 00:00 *   359.88655 -19.10638 0.00309224296234   1349.476        3.01       10.93       0.020123
 2020-Dec-06 00:00 *     3.27860 -17.11544 0.00362529829859   1449.713       19.44       70.64       0.019340
 2020-Dec-07 00:00 *     5.79101 -15.58241 0.00410238017123   1508.262       33.83      122.96       0.019190
 2020-Dec-08 00:00 *     7.77749 -14.33634 0.00453493993517   1547.610       44.11      160.32       0.019478
 2020-Dec-09 00:00 *     9.42135 -13.28330 0.00493065705635   1577.092       51.96      188.83       0.020092
 2020-Dec-10 00:00 *    10.82929 -12.36648 0.00529497498457   1601.186       58.23      211.63       0.020961
.
.
 2021-Jan-20 00:00 *m   49.84411  11.46949 0.00617617433142   5233.703      227.88      828.23       0.141820
 2021-Jan-21 00:00 *m   51.92226  12.51599 0.00591179383712   5671.715      238.93      868.37       0.147256
 2021-Jan-22 00:00 *m   54.24464  13.65034 0.00562923916831   6195.038      251.54      914.21       0.152962
 2021-Jan-23 00:00 *m   56.87045  14.88761 0.00532754115193   6830.181      266.38      968.15       0.159000
 2021-Jan-24 00:00 *m   59.88295  16.24652 0.00500565321654   7616.914      283.92     1031.90       0.165456
 2021-Jan-25 00:00 *m   63.40271  17.74985 0.00466259234996   8618.101      302.78     1100.43       0.172421
 2021-Jan-26 00:00 *m   67.60871  19.42326 0.00429766689332   9935.809      317.49     1153.92       0.179887
 2021-Jan-27 00:00 *m   72.77438  21.29053 0.00391072771892  11737.509      316.84     1151.53       0.187601
 2021-Jan-28 00:00 *    79.33461  23.35841 0.00350254189376  14305.099      279.22     1014.83       0.194863
 2021-Jan-29 00:00 *    88.01333  25.57033 0.00307573629822  18133.047      156.93      570.34       0.200088
 2021-Jan-30 00:00 *   100.05433  27.66211 0.00263730865660  24109.999      167.27      607.95       0.199653
 2021-Jan-31 00:00 *   117.51383  28.72497 0.00220512016731  33715.228      978.73     3557.14       0.184970
 2021-Feb-01 00:00 *   142.84511  26.16945 0.00182363132363  48156.313     2801.32    10181.27       0.136793
 2021-Feb-02 00:00 *   175.40018  15.63571 0.00158857283601  61639.467     5266.41    19140.53       0.028893
 2021-Feb-03 00:00 *   208.33758  -1.64365 0.00161676483876  56250.673     4839.49    17588.92       0.112902
 2021-Feb-04 00:00 *   235.58964 -16.00108 0.00189674282892  36622.470     1972.63     7169.42       0.198623
 2021-Feb-05 00:00 *   256.16698 -23.99186 0.00230068733199  21544.481      370.28     1345.78       0.221033
 2021-Feb-06 00:00 *   271.42759 -27.82694 0.00273811671200  12954.915      159.70      580.42       0.217631
 2021-Feb-07 00:00 *   282.92500 -29.52081 0.00317125606889   8125.607      274.74      998.52       0.207624
 2021-Feb-08 00:00 *   291.83486 -30.13392 0.00358620879682   5262.347      246.35      895.36       0.197841
 2021-Feb-09 00:00 *   298.95489 -30.18281 0.00397851330507   3443.091      175.32      637.19       0.190464
 2021-Feb-10 00:00 *   304.81081 -29.92448 0.00434789586450   2198.136      102.22      371.51       0.185839
 2021-Feb-11 00:00 *m  309.74600 -29.49341 0.00469603459648   1289.315       39.30      142.82       0.183622
 2021-Feb-12 00:00 *m  313.98612 -28.96408 0.00502518492727    605.988       15.17       55.12       0.183378
 2021-Feb-13 00:00 *m  317.68393 -28.37980 0.00533747836970    252.684       61.39      223.12       0.184789
 2021-Feb-14 00:00 *m  320.94732 -27.76661 0.00563474861238    564.782      103.35      375.63       0.187640
 2021-Feb-15 00:00 *m  323.85531 -27.14049 0.00591856469972    951.506      141.91      515.78       0.191787


JPL/Horizons solution 16, # obs: 78 (55 days)
2020 Oct 13

 Date__(UT)__HR:MN     R.A._(a-appar)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2020-Nov-20 00:00 *m   37.65366   6.24406 0.00662253576672     48.758       22.15       80.49       0.015782
 2020-Nov-21 00:00 *m   38.62290   6.82377 0.00626369881740     61.142       25.02       90.95       0.016643
 2020-Nov-22 00:00 *m   39.74618   7.48983 0.00588750535392     77.999       28.54      103.71       0.017621
 2020-Nov-23 00:00 *m   41.06186   8.26133 0.00549116253839    101.419       32.91      119.61       0.018745
 2020-Nov-24 00:00 *m   42.62513   9.16528 0.00507128637791    134.825       38.51      139.95       0.020055
 2020-Nov-25 00:00 *m   44.51950  10.24142 0.00462359857756    184.160       45.91      166.86       0.021608
 2020-Nov-26 00:00 *m   46.87916  11.55141 0.00414239688415    260.494       56.16      204.10       0.023495
 2020-Nov-27 00:00 *m   49.93642  13.19700 0.00361951514477    386.304       71.20      258.79       0.025867
 2020-Nov-28 00:00 *m   54.12721  15.35869 0.00304185801258    611.033       93.31      339.12       0.028984
 2020-Nov-29 00:00 *m   60.25742  18.35998 0.00238785905379   1093.712      105.42      383.15       0.032837
 2020-Nov-30 00:00 *    71.28907  23.07375 0.00163344619215   2826.311      203.85      740.89       0.039452
 2020-Dec-01 00:00 *   113.76604  30.82814 0.00068549020815  17026.134      553.35     2011.12       0.049325
 2020-Dec-02 00:00 *   315.12565 -35.82134 0.00085643365074   6076.139      602.03     2188.06       0.047562
 2020-Dec-03 00:00 *   345.52607 -26.47290 0.00176160848751    845.399      189.98      690.47       0.035610
 2020-Dec-04 00:00 *   354.88494 -21.89508 0.00247934680567   1641.827       58.34      212.05       0.030343
 2020-Dec-05 00:00 *   359.98059 -19.07759 0.00308741960591   1928.249        2.49        9.05       0.027852
 2020-Dec-06 00:00 *     3.37661 -17.08075 0.00362066361537   2064.923       28.83      104.76       0.026791
 2020-Dec-07 00:00 *     5.89090 -15.54395 0.00409778094954   2144.366       48.87      177.62       0.026615
 2020-Dec-08 00:00 *     7.87844 -14.29517 0.00453027012189   2197.609       63.19      229.65       0.027050
 2020-Dec-09 00:00 *     9.52300 -13.24003 0.00492583765200   2237.479       74.12      269.38       0.027942
 2020-Dec-10 00:00 *    10.93148 -12.32147 0.00528994416465   2270.104       82.87      301.17       0.029192
.
.
 2021-Jan-20 00:00 *m   50.16246  11.63323 0.00614174855345   7424.210      323.78     1176.77       0.200980
 2021-Jan-21 00:00 *m   52.27028  12.69050 0.00587603773812   8053.029      339.58     1234.17       0.208750
 2021-Jan-22 00:00 *m   54.62876  13.83709 0.00559208544955   8805.810      357.59     1299.66       0.216911
 2021-Jan-23 00:00 *m   57.29925  15.08828 0.00528890761468   9721.467      378.82     1376.79       0.225551
 2021-Jan-24 00:00 *m   60.36833  16.46310 0.00496543548487  10858.573      404.03     1468.44       0.234801
 2021-Jan-25 00:00 *m   63.96194  17.98451 0.00462066310787  12310.289      431.34     1567.69       0.244799
 2021-Jan-26 00:00 *m   68.26795  19.67815 0.00425389940731  14229.250      452.46     1644.43       0.255542
 2021-Jan-27 00:00 *m   73.57492  21.56659 0.00386505809121  16868.014      449.81     1634.81       0.266651
 2021-Jan-28 00:00 *    80.34389  23.65190 0.00345508373366  20654.334      389.37     1415.13       0.277037
 2021-Jan-29 00:00 *    89.34506  25.86238 0.00302700744227  26341.591      195.59      710.86       0.284214
 2021-Jan-30 00:00 *   101.90008  27.88748 0.00258875475098  35281.161      317.38     1153.51       0.282464
 2021-Jan-31 00:00 *   120.15200  28.68580 0.00216039106497  49659.964     1597.25     5805.14       0.258215
 2021-Feb-01 00:00 *   146.41637  25.40635 0.00179126694071  70774.860     4392.60    15964.71       0.181754
 2021-Feb-02 00:00 *   179.29645  13.83332 0.00158335654510  88100.791     7734.12    28109.29       0.018014
 2021-Feb-03 00:00 *   211.57284  -3.50320 0.00164582341334  76713.853     6403.37    23272.74       0.180092
 2021-Feb-04 00:00 *   237.84545 -17.06181 0.00194556493857  48989.756     2433.05     8842.80       0.288521
 2021-Feb-05 00:00 *   257.63918 -24.46889 0.00235450232123  28951.883      426.18     1548.91       0.314668
 2021-Feb-06 00:00 *   272.37926 -28.02440 0.00279106922853  17528.623      229.27      833.26       0.309116
 2021-Feb-07 00:00 *   283.54664 -29.59444 0.00322185967606  11010.449      369.39     1342.52       0.295600
 2021-Feb-08 00:00 *   292.24531 -30.15293 0.00363453168810   7082.199      328.95     1195.56       0.282560
 2021-Feb-09 00:00 *   299.22491 -30.17828 0.00402512446779   4550.734      233.39      848.24       0.272736
 2021-Feb-10 00:00 *   304.98235 -29.91108 0.00439344611361   2801.112      134.14      487.54       0.266593
 2021-Feb-11 00:00 *m  309.84472 -29.47845 0.00474109588057   1518.498       47.63      173.09       0.263708
 2021-Feb-12 00:00 *m  314.02859 -28.95136 0.00507022849970    579.619       27.42       99.64       0.263523
 2021-Feb-13 00:00 *m  317.68150 -28.37133 0.00538290043146    498.976       92.10      334.75       0.265615
 2021-Feb-14 00:00 *m  320.90802 -27.76346 0.00568089512983   1101.590      150.70      547.70       0.269699
 2021-Feb-15 00:00 *m  323.78502 -27.14324 0.00596574722268   1671.280      204.62      743.67       0.275579


Apparent Magnitudes, Solar Elongations, Lunar Elongations, and Lunar Illumination: JPL/Horizons solution 7 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta APmag S-brt S-O-T /r T-O-M/MN_Illu% 2020-Oct-20 00:00 28.61772 2.58043 0.01515449926331 19.813 n.a. 171.4184 /L 135.2/ 14.5491 2020-Oct-22 00:00 28.75860 2.45629 0.01460367300963 19.742 n.a. 171.1484 /L 107.2/ 33.7294 2020-Oct-24 00:00 28.92775 2.36473 0.01407131523640 19.684 n.a. 170.5306 /L 81.0/ 54.7096 2020-Oct-26 00:00 29.13429 2.31025 0.01355179938931 19.636 n.a. 169.6535 /T 56.2/ 73.7607 2020-Oct-28 00:00 29.38375 2.29566 0.01303994642238 19.590 n.a. 168.6041 /T 32.5/ 88.5417 2020-Oct-30 00:00 29.67912 2.32273 0.01253118639623 19.545 n.a. 167.4511 /T 10.0/ 97.5371 2020-Nov-02 00:00 30.21099 2.44426 0.01176548376285 19.471 n.a. 165.6301 /T 26.9/ 98.2660 2020-Nov-04 00:00 30.62573 2.58137 0.01124885444238 19.414 n.a. 164.4006 /T 50.2/ 90.0027 2020-Nov-06 00:00 31.09037 2.76628 0.01072452711038 19.349 n.a. 163.1844 /T 74.1/ 75.4866 2020-Nov-08 00:00 31.60939 3.00370 0.01019057651236 19.275 n.a. 162.0003 /T 99.0/ 56.2137 2020-Nov-10 00:00 32.19279 3.30169 0.00964516852232 19.190 n.a. 160.8698 /T 125.2/ 34.7085 2020-Nov-12 00:00 32.86018 3.67356 0.00908609357640 19.092 n.a. 159.8220 /T 152.8/ 14.9954 2020-Nov-14 00:00 33.64611 4.14006 0.00850991897865 18.977 n.a. 158.9011 /T 174.5/ 2.3479 2020-Nov-16 00:00 34.60462 4.73109 0.00791079409739 18.839 n.a. 158.1709 /T 148.1/ 0.9479 2020-Nov-18 00:00 35.81132 5.48685 0.00727954471730 18.671 n.a. 157.7182 /T 120.3/ 10.8345 2020-Nov-20 00:00 37.36910 6.46181 0.00660357580067 18.459 n.a. 157.6600 /T 94.6/ 28.1324 2020-Nov-22 00:00 39.43189 7.73840 0.00586677717501 18.184 n.a. 158.1693 /T 71.2/ 48.1500 2020-Nov-24 00:00 42.27185 9.46166 0.00504779072204 17.813 n.a. 159.5483 /T 50.0/ 67.3808 2020-Nov-25 00:00 44.14190 10.57334 0.00459815008906 17.572 n.a. 160.7374 /T 40.2/ 75.9488 2020-Nov-26 00:00 46.47327 11.93267 0.00411442617717 17.274 n.a. 162.4330 /T 31.0/ 83.5098 2020-Nov-27 00:00 49.49820 13.65139 0.00358819013341 16.893 n.a. 164.8799 /T 22.5/ 89.8600 2020-Nov-28 00:00 53.65423 15.93194 0.00300588902380 16.375 n.a. 168.5304 /T 15.2/ 94.8098 2020-Nov-29 00:00 59.76869 19.15828 0.00234572628369 15.591 n.a. 174.2138 /T 9.757/ 98.1857 2020-Nov-30 00:00 71.08137 24.45032 0.00158028002654 14.694 n.a. 174.9405 /L 9.647/ 99.8393 2020-Dec-01 00:00 120.09086 34.10099 0.00061104207253 13.993 n.a. 132.5397 /L 41.3/ 99.6593 2020-Dec-02 00:00 317.24026 -32.73287 0.00092823446358 17.885 n.a. 60.8550 /T 136.3/ 97.5846 2020-Dec-03 00:00 344.66648 -25.28275 0.00182092224612 17.966 n.a. 84.9127 /T 123.5/ 93.6156 2020-Dec-04 00:00 353.83982 -21.24774 0.00253243877364 18.331 n.a. 93.2794 /T 126.5/ 87.8209 2020-Dec-06 00:00 2.34756 -16.81589 0.00366952486762 18.865 n.a. 100.5096 /T 142.5/ 71.4001 2020-Dec-08 00:00 6.89393 -14.18577 0.00457960598608 19.235 n.a. 103.6636 /T 162.3/ 50.4100 2020-Dec-10 00:00 9.97985 -12.30005 0.00534210343993 19.515 n.a. 105.2486 /T 165.6/ 28.3544 2020-Dec-12 00:00 12.35915 -10.79577 0.00599520725957 19.737 n.a. 106.0552 /T 142.2/ 10.1109 2020-Dec-14 00:00 14.35699 -9.50814 0.00655979954117 19.919 n.a. 106.4326 /T 115.5/ 0.6595 2020-Dec-16 00:00 16.13876 -8.35205 0.00704747643826 20.069 n.a. 106.5605 /T 88.9/ 2.4236 2020-Dec-18 00:00 17.79282 -7.28143 0.00746467956757 20.194 n.a. 106.5362 /T 63.4/ 13.8415 2020-Dec-20 00:00 19.36673 -6.27028 0.00781533577001 20.297 n.a. 106.4124 /T 39.7/ 31.0367 2020-Dec-22 00:00 20.88742 -5.30232 0.00810230424604 20.381 n.a. 106.2201 /T 18.1/ 50.2617 2020-Dec-24 00:00 22.37240 -4.36577 0.00832804757141 20.448 n.a. 105.9796 /T 10.1/ 68.7819 2020-Dec-26 00:00 23.83449 -3.45133 0.00849501786947 20.500 n.a. 105.7062 /T 28.9/ 84.5247 2020-Dec-28 00:00 25.28325 -2.55144 0.00860580697048 20.537 n.a. 105.4115 /T 50.7/ 95.5543 2020-Dec-30 00:00 26.72650 -1.65918 0.00866311900243 20.561 n.a. 105.1052 /T 73.6/ 99.9604 2021-Jan-02 00:00 28.90124 -0.31786 0.00865495145318 20.575 n.a. 104.6485 /T 109.6/ 91.3179 2021-Jan-04 00:00 30.37858 0.59344 0.00859075320935 20.568 n.a. 104.3704 /T 134.6/ 75.6822 2021-Jan-06 00:00 31.90432 1.53448 0.00848218429017 20.548 n.a. 104.1433 /T 159.7/ 54.6627 2021-Jan-08 00:00 33.51120 2.52262 0.00833040986041 20.514 n.a. 104.0031 /T 170.3/ 32.1808 2021-Jan-10 00:00 35.24111 3.57789 0.00813512152731 20.463 n.a. 103.9950 /T 145.6/ 13.0947 2021-Jan-12 00:00 37.14408 4.72225 0.00789430966668 20.392 n.a. 104.1719 /T 119.4/ 1.9060 2021-Jan-14 00:00 39.27733 5.97909 0.00760447304563 20.298 n.a. 104.5931 /T 94.0/ 0.8854 2021-Jan-16 00:00 41.70758 7.37446 0.00726124216113 20.174 n.a. 105.3262 /T 70.2/ 9.1717 2021-Jan-18 00:00 44.52030 8.94063 0.00685996335316 20.014 n.a. 106.4560 /T 48.1/ 23.8820 2021-Jan-20 00:00 47.83856 10.72215 0.00639576895280 19.809 n.a. 108.1018 /T 27.7/ 41.8855 2021-Jan-22 00:00 51.85789 12.78477 0.00586307170229 19.546 n.a. 110.4490 /T 8.877/ 60.6353 2021-Jan-24 00:00 56.92012 15.23024 0.00525495555814 19.205 n.a. 113.8120 /T 10.6/ 77.9876 2021-Jan-26 00:00 63.68588 18.21703 0.00456397217722 18.750 n.a. 118.7750 /T 27.9/ 91.6921 2021-Jan-28 00:00 73.56991 21.96113 0.00378501515647 18.121 n.a. 126.5122 /T 43.8/ 99.1834 2021-Jan-30 00:00 90.11975 26.51692 0.00292185855239 17.191 n.a. 139.7017 /T 55.2/ 98.1300 2021-Feb-02 00:00 152.93345 24.70886 0.00166286267287 15.308 n.a. 162.1763 /L 41.6/ 79.3242 2021-Feb-04 00:00 221.83487 -7.99065 0.00161947320413 17.355 n.a. 93.4797 /L 7.461/ 58.4687 2021-Feb-06 00:00 266.56430 -26.11460 0.00242351295663 21. n.a. 50.5500 /L 23.3/ 35.8975 2021-Feb-08 00:00 290.23141 -29.62105 0.00331343403259 24. n.a. 32.5535 /L 17.0/ 16.3756 2021-Feb-10 00:00 304.41643 -29.61609 0.00410168541328 26. n.a. 23.5418 /L 6.374/ 3.8081 2021-Feb-12 00:00 314.17467 -28.66867 0.00478878495174 28. n.a. 18.4691 /L 18.4/ 0.2152 2021-Feb-14 00:00 321.48233 -27.43798 0.00539710756397 30. n.a. 15.5742 /L 36.7/ 5.3390 2021-Feb-16 00:00 327.23957 -26.13687 0.00594314566268 31. n.a. 14.0034 /L 55.7/ 17.2870 2021-Feb-18 00:00 331.93211 -24.84262 0.00643873148625 31. n.a. 13.2158 /T 74.9/ 33.6513

Setups




CW setup:
---------------------------------------------------------------------------
TX polarization           RCP
RCV polarization          LCP & RCP
Frequency hops:           no hopping
Bandwidth:               5000 Hz 
TXoffset                 +500 Hz
FFT                      5000 for 1.0 Hz resolution 

Ranging setups:
---------------------------------------------------------------------------
10-usec
baud             10 usec
code            127
PRP            1270 usec
ncoh              1 
bandwidth       787 Hz   
FFT             128
resolution       6.15 Hz
TXoffset       +100 Hz  (echo in column 80)
---------------------------------------------------------------------------
11-usec 
baud             11 usec
code            127
PRP            1397 usec
ncoh              1 
bandwidth       716 Hz   
FFT             128
resolution      5.6 Hz
TXoffset     +100 Hz  (echo in column 82) 
-------------------------------------------------------------------------
1-usec 
baud              1 usec
code            255
ncoh              8
bandwidth       245 Hz   
FFT             128
resolution        3.8 Hz
TXoffset        +50 Hz  (echo in column 116)
---------------------------------------------------------------------

Instructions

NOTE: Data should be moved to the appropriate subdirectories in aardvark:/export/data0/2020so/raw/

POINTING:

  OSOD and predicts are on aardvark:

...Not yet available...

POINTING  

...Not yet available...

Transmit offsets are given in millidegrees.  


PRDX.OUT.14f-14-14.s?? TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL

2020 SO GOLDSTONE MASTERLOG

============================================================================== Receive TX Setup hops dwell code ncoh FFT runs start -stop OSOD offset Poln Notes ------------------------------------------------------------------------------
Dr. Lance A. M. Benner | PHONE: (818) 354-7412 Mail Stop 183-601 | FAX: (818) 393-4445 Jet Propulsion Laboratory | email: lance.benner@jpl.nasa.gov California Institute of Technology | Plan: To live long and prosper Pasadena, CA 91109-8099 https://echo.jpl.nasa.gov/asteroids/2020SO/2020so.2020.goldstone.planning.html

Asteroid Radar Astronomy
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