Goldstone Radar Observations Planning: 2013 CW32, 2019 AV2, and 2019 BJ1


Background


2013 CW32
2013 CW32 was discovered on 2013 February 5 by the Catalina Sky Survey near Tucson, Arizona.
This asteroid has an absolute magnitude of 21.9 that suggests a diameter
of roughly 0.15 km, but otherwise nothing is known about its physical properties.  

This asteroid will approach within 0.036 au on January 29 and observations at Goldstone are  
are scheduled on Jan. 29-31.  Observations at Arecibo are scheduled on January 31 and February 1.

We are expecting weak SNRs for this object at Goldstone.  The SNRs at Arecibo should be strong 
enough for moderate-resolution delay-Doppler imaging.

Pointing uncertainties for solution 13 are relatively large, but new astrometry reported on Jan. 23
by Tim Lister should reduce the uncertainties considerably.  

Update on January 30: Lightcurves reported by Nick Erasmus (South African Astronomical Observatory)
indicate a rotation period of 2.25 hours.  Combined with the Goldstone bandwidth of ~7 Hz, this places
a lower bound on the maximum pole-on breadth of 0.16 km.

The Minor Planet Center has classified 2013 CW32 as a "Potentially Hazardous Asteroid."


2019 AV2
2019 AV2 was discovered on January 3, 2019 by the ATLAS program on Haleakala, Maui.  This object
has an absolute magnitude of 21.2 that suggests a diameter of roughly 0.2 km.   This asteroid
was observed at Arecibo on January 25 and 26, and the echoes revealed a narrow bandwidth that 
hints at a slow rotation period of 30 - 60 hours.

This asteroid will approach within 0.045 au on February 1.  We expect SNRs strong enough for a detection
at Goldstone, despite a transmitter power of 100 kW, but probably not strong enough for detailed imaging.

The narrow bandwidth seen in the Arecibo echoes suggests the bandwidth at Goldstone will be
roughly 0.4 Hz.

2019 AV2 is classified as a "Poentially Hazardous Asteroid" by the Minor Planet Center.


2019 BJ1
2019 BJ1 is a small object about 30-40 meters in diameter that was discovered on 2019 January 25
by Pan-STARRS 1.  Nothing is known about the physical properties other than its absolute magnitude
of 24.8.  

This asteroid will approach within 3.4 lunar distance (0.0088 au) on January 30, less than one
day after our asteroid track on the same day.  The view period for 2019 BJ1 overlaps time for
2013 CW32 so we hope to observe BJ1 at the beginning of the track.  Estimated SNRs could be
strong enough to see echoes quickly...or we might struggle to detect it.



Orbital and Physical Characteristics  
Name                     2013 CW32                2019 AV2                2019 BJ1
Asteroid number          Not numbered             Not numbered            Not numbered
Discoverer               Catalina Sky Survey      ATLAS-Haleakala         Pan-STARRS 1
Discovery date           2013 February 5          2019 January 3          2019 Jan 25
orbit type               Aten                     Apollo                  Apollo
Close approach dist.     0.0356 au                0.045 au                0.0088 au
Close approach dist.     13.9 lunar distances     17.5 lunar distances    3.4 lunar distances
Close approach date      2019 Jan 29              2019 Feb 01             2019 Jan 30

semimajor axis           0.905 au                 2.460 au                2.259 au
eccentricity             0.378                    0.644                   0.669
inclination              26.1 deg                 9.0 deg                 0.35 deg
Orbital period           0.860 years              3.86 years              3.39 y
perihelion distance      0.562 au                 0.875 au                0.747 au
aphelion distance        1.246 au                 4.613 au                3.770 au
Tisserand parameter      

absolute magnitude (H)   21.9                     21.2                    24.8
diameter                >0.16 km                 ~0.2 km                 ~0.035 km +- a factor of two
optical albedo           unknown                  unknown                 unknown
rotation period          unknown                  30 h?  60 h? Slow.      Possibly 1-2 minutes based on ~100 Hz echo bandwdith
pole direction           unknown                  unknown                 unknown
lightcurve amplitude     unknown                  unknown                 unknown
spectral class           unknown                  unknown                 unknown
                         PHA                      PHA 

Last update: 2019 January 30

Discovery M.P.E.C.

2013 CW32
https://www.minorplanetcenter.net/mpec/K13/K13C28.html

2019 AV2
https://www.minorplanetcenter.net/mpec/K19/K19A68.html

2019 BJ1
https://www.minorplanetcenter.net/mpec/K19/K19B87.html


SNR Calculations


2013 CW32 GOLDSTONE SNRS

2013 CW32:  D = 0.15 km,  P = 2.2 h,  OC albedo = 0.1

w  DOY  start date    window         RA, dec   dist   runs   SNR/day  SNR/run
5   29  2019 Jan 29  06:09-10:35    134, -27  0.036    227     12        1    Scheduled
5   30  2019 Jan 30  04:27-11:35    130, -12  0.036    363     17        1    Scheduled
5   31  2019 Jan 31  03:22-12:06    127,  +1  0.038    414     15        1    Scheduled
5   32  2019 Feb 01  02:33-12:23    125, +13  0.043    416     11        1
Goldstone SNRs assume Ptx = 100 kW and Tsys = 17 K


2013 CW32 ARECIBO SNRS
 start date    window       RA, dec   dist   runs SNR/day   SNR/run
2019 Jan 31  03:56-04:45   128,   0  0.038     40   170        28    
2019 Feb 01  02:49-05:20   125, +11  0.042    109   280        28    Scheduled
2019 Feb 02  02:29-05:13   123, +21  0.048    106   180        18    
2019 Feb 03  02:24-04:54   121, +28  0.055     83    97        11
2019 Feb 04  02:32-04:25   119, +33  0.062     55    47         7
2019 Feb 05  02:59-03:39   118, +38  0.070     17    12         3
Arecibo SNRs assume Ptx = 400 kW and Tsys = 25 K. 


2019 AV2 Goldstone SNRs 2019 AV2: D = 0.2 km, P = 30 h, OC albedo = 0.1 start date window RA, dec dist runs SNR/day SNR/run 2019 Jan 27-28 21:37-09:21 62, +36 0.057 378 21 1 2019 Jan 28-29 20:58-08:59 55, +39 0.053 420 29 2 Overlaps 2013 CW32: 0615-0859 on Jan 29 2019 Jan 29-30 20:12-08:31 47, +43 0.049 463 38 2 Overlaps 2013 CW32: 0640-0831 on Jan 30 2019 Jan 30-31 19:18-07:53 36, +46 0.047 502 48 2 Overlaps 2013 CW32: 0640-0753 on Jan 31 2019 Jan 31-01 18:18-07:04 24, +49 0.045 530 56 3 2019 Feb 01-02 17:15-06:05 10, +49 0.045 539 58 3 2019 Feb 02-03 16:16-05:03 356, +49 0.046 526 54 3 2019 Feb 03-04 15:28-04:03 344, +46 0.047 496 46 2 2019 Feb 04-05 14:51-03:11 334, +43 0.050 455 36 2 2019 Feb 05-06 14:23-02:26 325, +40 0.054 412 26 1 Goldstone SNRs assume Ptx = 100 kW and Tsys = 17 K. The slow rotation period is a very rough estimate based on results from Arecibo on Jan. 25. 2019 AV2 Arecibo SNRs 2019 AV2: D = 0.2 km, P = 30 h, OC albedo = 0.1 start date window RA, dec dist runs SNR/day SNR/run 2019 Jan 20 00:47-03:32 85, +18 0.106 44 40 6 2019 Jan 21 00:37-03:23 83, +19 0.099 48 53 8 2019 Jan 22 00:27-03:12 82, +21 0.093 54 72 10 2019 Jan 23 00:16-03:00 80, +22 0.086 58 96 13 2019 Jan 24 00:05-02:45 77, +24 0.080 61 130 17 2019 Jan 24-25 23:53-02:27 75, +27 0.074 63 170 23 2019 Jan 25-26 23:42-02:04 72, +29 0.068 64 230 30 Scheduled 2019 Jan 26-27 23:31-01:35 68, +32 0.063 60 280 40 Scheduled 2019 Jan 27-28 23:25-00:53 62, +35 0.058 47 280 45 ...too far north for a while... 2019 Feb 06 16:10-17:14 320, +37 0.058 34 220 39 2019 Feb 07 15:21-17:13 315, +33 0.063 54 260 40 2019 Feb 08 14:49-17:04 311, +31 0.068 61 220 30 2019 Feb 09 14:25-16:54 307, +28 0.074 61 170 23 Arecibo SNRs assume Ptx = 400 kW and Tsys = 25 K.
2019 BJ1 Goldstone SNRs 2019 BJ1 Assumptions: D = 0.04 km, P = 0.5 h, OC albedo = 0.1 start date window RA, dec dist runs SNR/day SNR/run 2019 Jan 29 00:12-09:57 88, +16 0.017 1058 21 1 2019 Jan 29-30 22:58-07:35 63, +10 0.011 1630 150 4 Overlaps 2013 CW32 from 0640-0735 UT on Jan 30 2019 Jan 30-31 20:39-03:34 17, -6 0.009 1600 250 7 2019 Jan 31-01 18:38-00:50 340, -16 0.014 858 37 1 Goldstone SNRs assume Ptx = 100 kW and Tsys = 17 K. 2019 BJ1 Arecibo SNRs start date window RA, dec dist runs SNR/day SNR/run 2019 Jan 26 01:56-04:41 108, +19 0.046 106 11 1 2019 Jan 27 01:40-04:24 105, +19 0.036 132 28 3 2019 Jan 28 01:17-03:59 100, +18 0.027 174 88 7 2019 Jan 29 00:36-03:14 90, +17 0.019 274 420 26 2019 Jan 29-30 23:14-01:32 68, +12 0.011 418 2800 140 After Jan 30 this object moves too far south for Arecibo to track. Arecibo SNRs assume Ptx = 400 kW and Tsys = 25 K

Track Assignments


DOY  BOA   BOT   EOT   EOA
 29  0545  0715  0950  1020     GSSR AST 2013 CW32
 30  0610  0740  1055  1125     GSSR AST 2013 CW32
 31  0610  0740  0940  1010     GSSR AST 2013 CW32

Goldstone tracks:
     UT       UT          PST                  Duration Round-trip     2019 AV2     Eros        2019 BJ1
DOY  Date     TX Window   TX Window            hh:mm    time (sec)     Overlap      Overlap     Overlap
 29  Jan 29   0615-0950   2215-0150 Jan 28-29   3:35     36            0615-0859    0615-0950   0615-0950 (weak SNRs)
 30  Jan 30   0640-1055   2240-0255 Jan 29-30   4:15     36            0640-0831    0640-0950   0640-0735
 31  Jan 31   0640-0940   2240-0140 Jan 30-31   3:00     38            0640-0753    0640-0940   No overlap

Start times indicate when we can transmit, which on both days is only 30 minutes 
after we get the telescope.

If 2013 CW32 turns out to be a dud, we could observe 2019 AV2 and/or Eros instead.


Arecibo tracks:
UT                      UT          PST                Round-trip  
Date                    TX Window   TX Window          time (sec)  
Jan 24-25  2019 AV2     2353-0227   1553-1827             80
Jan 25-26  2019 AV2     2342-0204   1542-1804             74
Jan 31     2013 CW32    0356-0445   1956-2045             38
Feb 01     2013 CW32    0249-0520   1849-2120             42



Uncertainties

2013 CW32
JPL/Horizons solution 14, # obs: 58 (2013-2019)
2019 Jan 26
 Date__(UT)__HR:MN     R.A._(a-appar)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2019-Jan-25 00:00 *   161.85330 -68.74662 0.05764974400415      0.976        0.70        2.54       0.000530
 2019-Jan-26 00:00 *   153.21714 -63.12235 0.05058032982314      1.203        0.97        3.52       0.000510
 2019-Jan-27 00:00 *   146.07471 -55.30030 0.04438145811802      1.554        1.45        5.27       0.000477
 2019-Jan-28 00:00 *   140.23499 -44.85329 0.03947996779846      2.042        2.20        7.98       0.000423
 2019-Jan-29 00:00 *   135.46352 -31.79326 0.03641989029921      2.574        3.06       11.12       0.000345
 2019-Jan-30 00:00 *   131.54480 -17.13786 0.03569497265026      2.921        3.59       13.05       0.000253
 2019-Jan-31 00:00 *   128.30150  -2.81103 0.03745712240964      2.908        3.44       12.49       0.000188
 2019-Feb-01 00:00 *   125.59454   9.52945 0.04140428745024      2.608        2.80       10.19       0.000189

JPL/Horizons solution 13, # obs: 51 (2013-2014)
2019 Jan 23
 Date__(UT)__HR:MN     R.A._(a-appar)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2019-Jan-25 00:00 *   161.83992 -68.75284 0.05764952124752    144.016       31.25      113.56       0.001346
 2019-Jan-26 00:00 *   153.20269 -63.12844 0.05057987963307    163.008       35.49      128.98       0.002335
 2019-Jan-27 00:00 *   146.06024 -55.30612 0.04438075420466    184.273       39.25      142.66       0.003570
 2019-Jan-28 00:00 *   140.22109 -44.85870 0.03947899788313    205.194       39.69      144.25       0.004912
 2019-Jan-29 00:00 *   135.45047 -31.79800 0.03641868313628    220.154       32.52      118.18       0.006136
 2019-Jan-30 00:00 *   131.53269 -17.14170 0.03569361961451    222.542       17.29       62.83       0.006917
 2019-Jan-31 00:00 *   128.29032  -2.81397 0.03745575216893    210.685        7.65       27.80       0.007054
 2019-Feb-01 00:00 *   125.58423   9.52720 0.04140300527001    189.836       15.33       55.71       0.006655


2019 AV2
From Jon Giorgini, 2019 Jan 28:
There were about 2 more days of optical extending the 2019 AV2 arc,
so the directory for 2019 AV2 was updated to orbit solution #13;
Formal 3-sigma X-band uncertainties:

Date__(UT)__HR:MN  POS_3sigma   DOP_X_3sig  RT_delay_3sig
2019-Jan-28 00:00       0.865         0.86       0.000013
2019-Jan-29 00:00       1.021         1.54       0.000021
2019-Jan-30 00:00       1.190         2.35       0.000037
2019-Jan-31 00:00       1.355         3.19       0.000063
2019-Feb-01 00:00       1.492         3.90       0.000097

JPL/Horizons solution 9, # obs: 102 (25 days)
2019 Jan 28
 Date__(UT)__HR:MN     R.A._(a-appar)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2019-Jan-25 00:00 *    74.95673  26.40892 0.07403700482469      0.622      174.45      634.03       0.078825
 2019-Jan-26 00:00 *    71.69276  29.01604 0.06819688377020      0.771      164.60      598.22       0.072666
 2019-Jan-27 00:00 *    67.65356  31.98760 0.06273211282263      1.050      152.28      553.45       0.066907
 2019-Jan-28 00:00 *    62.56811  35.32266 0.05774042085477      1.497      136.76      497.06       0.061652
 2019-Jan-29 00:00 *    56.07049  38.94970 0.05334686516017      2.149      117.26      426.17       0.057029
 2019-Jan-30 00:00 *    47.71124  42.66345 0.04970370647674      3.026       93.09      338.32       0.053198
 2019-Jan-31 00:00 *    37.07388  46.05391 0.04698080337754      4.104       64.06      232.83       0.050332
 2019-Feb-01 00:00 *    24.11125  48.50312 0.04534101855952      5.283       31.01      112.70       0.048600
This does NOT include Arecibo astrometry from Jan. 25 and 26, which should crush the uncertainties.

JPL/Horizons solution 7, # obs: 86 (23 days)
2019 Jan 26
 Date__(UT)__HR:MN     R.A._(a-appar)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2019-Jan-25 00:00 *    74.95673  26.40892 0.07403697720383      0.836      203.34      739.03       0.092243
 2019-Jan-26 00:00 *    71.69276  29.01604 0.06819686296712      1.201      191.88      697.38       0.085065
 2019-Jan-27 00:00 *    67.65356  31.98760 0.06273209828883      1.802      177.57      645.36       0.078354
 2019-Jan-28 00:00 *    62.56811  35.32265 0.05774041178950      2.692      159.56      579.93       0.072226
 2019-Jan-29 00:00 *    56.07050  38.94969 0.05334686041120      3.925      136.96      497.77       0.066832
 2019-Jan-30 00:00 *    47.71126  42.66343 0.04970370444092      5.526      108.98      396.10       0.062353
 2019-Jan-31 00:00 *    37.07392  46.05389 0.04698080195457      7.438       75.46      274.25       0.058991
 2019-Feb-01 00:00 *    24.11131  48.50311 0.04534101524291      9.466       37.50      136.28       0.056940
This does NOT include Arecibo astrometry from Jan. 25 and 26, which should crush the uncertainties.


2019 BJ1
JPL/Horizons solution 3, # obs: 37 (18 days)
2019 Jan 29
 Date__(UT)__HR:MN     R.A._(a-appar)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2019-Jan-29 00:00 *    91.24355  16.96020 0.01928893946495      2.489      859.33     3123.21       0.070979 
 2019-Jan-30 00:00 *    68.77417  11.70640 0.01154703014116     11.932      633.52     2302.50       0.042879 *
 2019-Jan-31 00:00 *    17.03939  -5.98485 0.00902351029273     33.777      201.28      731.53       0.033049
 2019-Feb-01 00:00 *   337.96535 -16.69071 0.01470661218540     20.912      764.12     2777.17       0.052924
 2019-Feb-02 00:00 *   323.02208 -18.88095 0.02319924801090     13.224      891.30     3239.41       0.083490

JPL/Horizons solution 1, # obs: 29 (16 days)
2019 Jan 26
 Date__(UT)__HR:MN     R.A._(a-appar)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2019-Jan-29 00:00 *    91.24072  16.95953 0.01925982640907     51.938     1352.45     4915.41       0.121724  *
 2019-Jan-30 00:00 *    68.76322  11.70299 0.01152870469698    204.197     1112.32     4042.66       0.076282  *
 2019-Jan-31 00:00 *    17.01594  -5.99327 0.00901159473765    441.802      414.12     1505.10       0.051073
 2019-Feb-01 00:00 *   337.95294 -16.69325 0.01468966966355    212.352     1099.76     3997.02       0.075485
 2019-Feb-02 00:00 *   323.01555 -18.88179 0.02317178955582    106.637     1355.88     4927.87       0.121077


Apparent Magnitudes, Solar Elongations, Lunar Elongations, and Lunar Illumination: 2013 CW32 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta APmag S-O-T /r T-O-M/Illu% 2019-Jan-20 00:00 216.69588 -77.70470 0.09876322091171 20.67 69.2109 /L 115.9/ 97.8 2019-Jan-21 00:00 206.51549 -77.47652 0.09012325166314 20.37 71.8439 /L 109.5/ 99.9 2019-Jan-22 00:00 195.15060 -76.72472 0.08162037686364 20.03 74.9264 /L 101.3/ 99.1 2019-Jan-23 00:00 183.32673 -75.21269 0.07330795709770 19.66 78.6035 /L 92.2/ 95.2 2019-Jan-24 00:00 171.96556 -72.66718 0.06526568603770 19.24 83.0798 /L 83.0/ 88.7 2019-Jan-25 00:00 161.79930 -68.77316 0.05761522131267 18.77 88.6447 /L 75.0/ 80.2 2019-Jan-26 00:00 153.15287 -63.14472 0.05054506776806 18.24 95.6939 /L 69.7/ 70.2 2019-Jan-27 00:00 146.00644 -55.31509 0.04434608112324 17.67 104.7185 /L 69.1/ 59.6 2019-Jan-28 00:00 140.16667 -44.85639 0.03944577552935 17.09 116.1612 /L 74.9/ 48.9 2019-Jan-29 00:00 135.39735 -31.78142 0.03638905041720 16.54 129.9919 /L 87.6/ 38.5 2019-Jan-30 00:00 131.48183 -17.11209 0.03567003685390 16.10 145.0848 /T 105.1/ 28.9 2019-Jan-31 00:00 128.24215 -2.77751 0.03743974716687 15.81 159.1081 /T 124.7/ 20.3 2019-Feb-01 00:00 125.53885 9.56369 0.04139449051714 15.73 168.5509 /T 143.6/ 13.1 2019-Feb-02 00:00 123.26468 19.35752 0.04699819923692 16.02 168.3204 /T 160.5/ 7.3 2019-Feb-03 00:00 121.33751 26.86286 0.05374808590137 16.51 162.7815 /T 172.1/ 3.1 2019-Feb-04 00:00 119.69416 32.58631 0.06127546683255 16.97 157.2574 /T 165.1/ 0.7 2019-Feb-05 00:00 118.28572 36.99369 0.06933512584709 17.38 152.5692 /T 152.5/ 0.0 2019-Feb-06 00:00 117.07393 40.43988 0.07776810564607 17.74 148.6611 /T 139.9/ 1.2 2019-Feb-07 00:00 116.02856 43.17898 0.08647058072378 18.06 145.3769 /T 127.7/ 4.1 2019-Feb-08 00:00 115.12545 45.39022 0.09537324420827 18.35 142.5774 /T 115.8/ 8.6 2019-Feb-09 00:00 114.34512 47.20057 0.10442856629481 18.62 140.1545 /T 104.1/ 14.7 2019-Feb-10 00:00 113.67165 48.70116 0.11360301922770 18.86 138.0271 /T 92.6/ 22.2 2019-Feb-11 00:00 113.09195 49.95843 0.12287228732159 19.08 136.1344 /T 81.4/ 30.9 2019-Feb-12 00:00 112.59510 51.02163 0.13221826085219 19.28 134.4302 /T 70.3/ 40.5 2019-Feb-13 00:00 112.17196 51.92788 0.14162710907512 19.47 132.8795 /T 59.5/ 50.8 2019-Feb-14 00:00 111.81474 52.70556 0.15108801951694 19.64 131.4553 /T 49.3/ 61.4 2019-Feb-15 00:00 111.51679 53.37672 0.16059235880641 19.81 130.1361 /T 40.5/ 71.8 2019 AV2 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta APmag S-O-T /r T-O-M/Illu% 2019-Jan-25 00:00 74.92887 26.42146 0.07405970541311 17.35 131.6956 /T 100.7/ 80.2 2019-Jan-26 00:00 71.66280 29.02782 0.06822235258979 17.26 127.9028 /T 117.0/ 70.2 2019-Jan-27 00:00 67.62156 31.99789 0.06276053603947 17.19 123.5291 /T 132.5/ 59.6 2019-Jan-28 00:00 62.53451 35.33043 0.05777192674007 17.15 118.4625 /T 146.2/ 48.9 2019-Jan-29 00:00 56.03647 38.95365 0.05338145504251 17.14 112.5993 /T 154.4/ 38.5 2019-Jan-30 00:00 47.67939 42.66223 0.04974115596880 17.18 105.8804 /T 150.9/ 28.9 2019-Jan-31 00:00 37.04891 46.04684 0.04702055493611 17.30 98.3483 /T 138.1/ 20.3 2019-Feb-01 00:00 24.09954 48.49130 0.04538212627076 17.52 90.2083 /T 121.7/ 13.1 2019-Feb-02 00:00 9.63314 49.37031 0.04494305582281 17.84 81.8482 /T 104.4/ 7.3 2019-Feb-03 00:00 355.29398 48.43363 0.04573842502113 18.26 73.7695 /T 87.7/ 3.1 2019-Feb-04 00:00 342.65186 46.00042 0.04770871110603 18.75 66.4439 /T 72.8/ 0.7 2019-Feb-05 00:00 332.37736 42.70685 0.05072070988225 19.28 60.1846 /T 61.2/ 0.0 2019-Feb-06 00:00 324.34818 39.13566 0.05460689093846 20. 55.1057 /T 54.1/ 1.2 2019 BJ1 Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta APmag S-O-T /r T-O-M/Illu% 2019-Jan-27 00:00 105.30348 18.98732 0.03758230265419 18.80 157.4579 /T 101.5/ 59.6 2019-Jan-28 00:00 100.46199 18.43870 0.02825695289443 18.33 151.8448 /T 119.5/ 48.9 2019-Jan-29 00:00 91.13712 17.02485 0.01930183244204 17.77 141.8631 /T 141.3/ 38.5 2019-Jan-30 00:00 68.62699 11.80639 0.01157076577822 17.30 118.4847 /T 173.0/ 28.9 2019-Jan-31 00:00 17.02388 -5.80726 0.00905550713758 19.14 63.2707 /T 116.1/ 20.3 2019-Feb-01 00:00 338.04841 -16.56765 0.01472654158976 26. 22.7395 /T 64.5/ 13.1 2019-Feb-02 00:00 323.09350 -18.80639 0.02321160370399 36. 7.6455 /T 38.1/ 7.3

Setups


We don't know what to expect for the bandwidth of this object, but due to its relatively small
diameter, the bandwidth could be roughly 5 Hz.  

CW setup:
---------------------------------------------------------------------------
TX polarization           RCP
RCV polarization          LCP & RCP
Frequency hops:           no hopping
Bandwidth:               5000 Hz 
TXoffset                  +500 Hz
FFT                      5000 for 1 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             16
bandwidth       245 Hz   
FFT             128
resolution        1.9 Hz
TXoffset        +50 Hz  (echo in column 116)
---------------------------------------------------------------------

Instructions

NOTE: Data should be moved to the appropriate subdirectories in aardvark:/export/data0/2013cw32/raw/

POINTING:

  OSOD and predicts will be on aardvark:

...not available yet...


POINTING  
                                                          TX Offsets    
Date (UTC)   DOY  hhmmss    RA        Dec         Macro   LHA     Dec    RTT    OSOD

... to be added ...

Transmit offsets are given in millidegrees.  


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

2013 CW32 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 http://echo.jpl.nasa.gov/asteroids/2013CW32/2013CW32_planning.html

Asteroid Radar Astronomy
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