1998 FH12 Planning
Background
1998 FH12 was discovered by the MIT/Lincoln Laboratory Near-Earth Asteroid
Research (LINEAR) project on March 25, 1998. Its absolute magnitude of 18.9
suggests that it is within a factor of two of about 500 meters in diameter.
Otherwise nothing is known about the physical properties of this object.
However, it will be well-positioned for photometry and vis-IR spectroscopy in June,
so it is possible that its rotation period will become known shortly before
the radar tracks start.
Due to its size and the proximity of its orbit to that of Earth, 1998 FH12 has been
classified as a "Potentially Hazardous Asteroid" by the International
Astronomical Union's Minor Planet Center.
Goldstone observations are scheduled for June 27-29 and Arecibo observations are
scheduled for June 27-30. 1998 FH12 will be a strong target and we expect to to
image it on all three Goldstone tracks. The Goldstone tracks completely overlap
tracks scheduled at Arecibo.
Orbital and Physical Characteristics
orbit type Apollo
semimajor axis 1.092 AU
eccentricity 0.540
inclination 3.53°
perihelion distance 0.503 AU
aphelion distance 1.682 AU
absolute magnitude (H) 18.8
diameter 0.37 to 1.0 km
rotation period unknown
lightcurve amplitude unknown
spectral class unknown
Timely astrometry reported by the following stations has significantly reduced the pointing,
Doppler, and range uncertainties:
185 Observatoire Astronomique Jurassien-Vicques (Switzerland)
204 Osservatorio Astronomico G.V. Schiaparelli (Italy)
587 Osservatorio Astronomico di Sormano (Italy)
620 Observatorio Astronomico de Mallorca (Spain)
673 Table Mountain Observatory (California)
926 Tenagra Observatory (Arizona)
941 Observatorio Astronomico Pla D'Arguines (Spain)
A14 Les Engarouines Observatory (France)
A28 Kempten Observatory (Germany)
H59 Prairie Grass Observatory (Indiana)
Last updated: 2003 July 1
Discovery
Discovery Announcement
M.P.E.C. 1998-F29 Issued 1998 Mar. 27, 14:57 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html
1998 FH12
Observations:
J98F12H* C1998 03 25.12722 11 04 24.15 +17 56 35.4 19.3 704
J98F12H C1998 03 25.14751 11 04 21.53 +17 56 39.1 19.1 704
J98F12H C1998 03 25.16801 11 04 18.60 +17 56 44.1 19.3 704
J98F12H C1998 03 25.18836 11 04 15.93 +17 56 48.9 19.7 704
J98F12H C1998 03 25.90517 11 02 43.03 +17 58 14.3 18.1 R 046
J98F12H C1998 03 25.90773 11 02 42.71 +17 58 14.8 046
J98F12H C1998 03 25.90954 11 02 42.48 +17 58 14.8 046
J98F12H C1998 03 26.05716 11 02 23.18 +17 58 29.4 18.9 V 557
J98F12H C1998 03 26.07672 11 02 20.72 +17 58 31.6 557
J98F12H C1998 03 26.13722 11 02 14.70 +17 58 45.6 19.0 704
J98F12H C1998 03 26.15770 11 02 12.16 +17 58 46.1 19.0 704
J98F12H C1998 03 26.17788 11 02 09.10 +17 58 49.7 20.0 704
J98F12H C1998 03 26.78427 11 00 55.81 +17 59 39.0 557
J98F12H C1998 03 26.79241 11 00 54.82 +17 59 39.7 18.8 V 557
J98F12H C1998 03 26.90836 11 00 40.50 +17 59 49.7 17.8 V 046
J98F12H C1998 03 26.91030 11 00 40.24 +17 59 50.0 046
J98F12H C1998 03 26.91207 11 00 40.03 +17 59 50.0 046
J98F12H C1998 03 27.26977 10 59 58.26 +18 00 14.5 658
J98F12H C1998 03 27.27204 10 59 57.95 +18 00 15.3 658
J98F12H C1998 03 27.27480 10 59 57.64 +18 00 15.4 658
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
557 Ondrejov. Observers P. Pravec, L. Sarounova. 0.65-m f/3.6 reflector
+ CCD.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh. 1.0-m f/2.15 reflector + CCD.
Orbital elements:
1998 FH12
Epoch 1998 Mar. 8.0 TT = JDT 2450880.5 Williams
M 72.51363 (2000.0) P Q
n 0.84036725 Peri. 282.10270 +0.83470617 -0.54741157
a 1.1121328 Node 111.11469 +0.52697937 +0.76233868
e 0.5716826 Incl. 3.69088 +0.15986980 +0.34522501
P 1.17 H 18.5 G 0.15
From 20 observations 1998 Mar. 25-27.
Ephemeris:
1998 FH12 a,e,i = 1.11, 0.57, 4 q = 0.4763
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 03 18 11 23.75 +17 18.8 0.361 1.344 162.6 12.8 17.7
1998 03 28 10 58.60 +18 01.0 0.457 1.412 150.0 20.7 18.6
1998 04 07 10 45.62 +17 43.4 0.568 1.474 138.3 26.9 19.3
1998 04 17 10 41.01 +16 54.2 0.689 1.528 128.1 31.1 19.9
1998 04 27 10 42.04 +15 46.8 0.817 1.576 119.2 33.9 20.5
1998 05 07 10 47.00 +14 27.7 0.951 1.618 111.3 35.5 20.9
1998 05 17 10 54.70 +13 00.6 1.087 1.654 104.0 36.4 21.3
1998 05 27 11 04.37 +11 27.3 1.224 1.684 97.2 36.7 21.6
1998 06 06 11 15.53 +09 48.9 1.360 1.708 90.8 36.4 21.8
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-F29
SNR Calculation
HMag: -18.8
Diameter: 0.550
Period: 4
------------GOLDSTONE---------- -------------ARECIBO-----------
Max Max
Dat Run UTC Dat Run UTC
Date RA Dec Delta Runs SNR SNR Window Runs SNR SNR Window
2003 6 21 323 -1 0.082 186 25 2 7:12-15:35 16 100 26 7:54- 8:18
2003 6 22 327 1 0.074 209 38 3 7:17-16:00 32 260 50 7:42- 8:54
2003 6 23 333 4 0.066 236 59 4 7:30-16:23 47 530 87 7:42- 9:30
2003 6 24 340 7 0.060 267 91 6 7:42-17:00 61 910 120 7:54-10:05
2003 6 25 348 11 0.055 299 130 8 8:00-17:41 75 1400 170 8:18-10:41
2003 6 26 358 15 0.051 329 180 11 8:24-18:30 85 1900 220 8:48-11:24
2003 6 27 10 19 0.050 349 200 12 9:00-19:23 88 2200 250 9:30-12:11
2003 6 28 22 23 0.050 355 190 11 9:35-20:18 87 2100 230 10:18-12:54
2003 6 29 35 25 0.053 346 160 9 10:11-21:06 81 1700 190 11:00-13:35
2003 6 30 46 26 0.058 325 110 7 10:48-21:48 74 1200 140 11:41-14:18
2003 7 1 55 27 0.064 298 77 5 11:24-22:23 67 790 100 12:18-14:48
2003 7 2 62 27 0.071 271 51 3 11:48-22:48 61 520 70 12:41-15:18
2003 7 3 68 26 0.079 245 33 2 12:11-23:06 56 340 48 13:05-15:35
2003 7 4 73 26 0.087 223 22 2 12:30-23:23 51 230 33 13:18-15:54
2003 7 5 77 25 0.096 203 15 1 12:41-23:36 47 150 24 13:30-16:06
2003 7 6 81 25 0.106 185 10 1 12:54-23:41 44 110 17 13:35-16:11
2003 7 7 83 24 0.116 170 7 1 13:00-23:48 41 77 12 13:41-16:23
Goldstone Track Assignments
UT UT Duration
DOY Date TX Window PDT TX Window AST TX Window (h)
--- ---- --------- ------------- ------------- --------
178 Jun 27 0935-1735 Jun 27 0235-1035 Jun 27 0535-1335 8:00
179 Jun 28 1015-1815 Jun 28 0315-1115 Jun 28 0615-1415 8:00
180 Jun 29 1055-1855 Jun 29 0355-1155 Jun 29 0655-1455 8:00
Arecibo Track Assignments
UT UT Duration
DOY Date TX Window PDT TX Window AST TX Window (h)
--- ---- --------- ------------- ------------- --------
178 Jun 27 0945-1238 Jun 27 0245-0538 Jun 27 0545-0838 2:53
179 Jun 28 1033-1323 Jun 28 0333-0623 Jun 28 0633-0923 2:50
180 Jun 29 1118-1403 Jun 29 0418-0703 Jun 29 0718-1003 2:45
181 Jun 30 1156-1438 Jun 30 0456-0738 Jun 30 0756-1038 2:42
Uncertainties
From Horizons (2003 May 21): JPL solution #2, # obs: 45 (1998-1999)
Date (UT) HH:MM R.A. DEC. Delta (AU) POS_3sigma DOP_S-sig DOP_X-sig RT_delay-sig
2003 Jun 27 00:00 10.45107 19.30664 0.0505482364 895.657043 31.49 112.63 0.472071
2003 Jun 28 00:00 22.71210 22.67439 0.0512576457 640.368211 68.98 246.71 0.498981
2003 Jun 29 00:00 34.65450 24.94805 0.0540699473 542.517500 103.16 368.96 0.507421
2003 Jun 30 00:00 45.38055 26.13695 0.0586941923 603.411553 131.40 469.98 0.501717
- - - - - - - - - - - - - - - - - - - -
From Ken Lawrence (2003 May 28):
"For your info...NEAT recovered 1998 FH12
last night!"
- - - - - - - - - - - - - - - - - - - -
From Horizons (2003 May 29): JPL solution #3, # obs: 48 (1998-2003)
2003-Jun-27 00:00 10.34169 19.37299 0.0502816124 60.2270973 5.64 20.17 0.004482
2003-Jun-28 00:00 22.67006 22.76187 0.0509808627 56.3184582 6.06 21.68 0.006937
2003-Jun-29 00:00 34.68040 25.04231 0.0537929910 48.6269967 6.59 23.57 0.009366
2003-Jun-30 00:00 45.45966 26.22498 0.0584242271 39.6995092 7.12 25.46 0.011369
- - - - - - - - - - - - - - - - - - - -
From Horizons (2003 June 5): JPL solution #5, # obs: 56 (1998-2003 June 4)
2003-Jun-27 00:00 10.33668 19.37090 0.0502804154 49.9762075 4.67 16.70 0.002176
2003-Jun-28 00:00 22.66522 22.76029 0.0509786850 47.7384024 4.97 17.78 0.004283
2003-Jun-29 00:00 34.67617 25.04129 0.0537899660 42.0473218 5.46 19.53 0.006484
2003-Jun-30 00:00 45.45627 26.22440 0.0584205398 34.9382087 6.00 21.46 0.008332
- - - - - - - - - - - - - - - - - - - -
From Reiner Stoss (2003 June 17):
"With last night's observations by 620 Observatorio Astronomico de Mallorca
(published in today's DOU) the 3sigma plane-of-sky uncertainty has dropped
to 15 arcseconds on June 27).
If weather stays clear we will try to do another set
tonight from OAM, though moon will be only 16° away (was
20° away last night)."
- - - - - - - - - - - - - - - - - - - -
From Horizons (2003 June 17): JPL solution #6, # obs: 60 (1998-2003 June 16)
2003-Jun-27 00:00 10.34368 19.37296 0.0502811845 17.3733020 1.68 6.02 0.001223
2003-Jun-28 00:00 22.67217 22.76174 0.0509807842 18.0791855 1.38 4.93 0.000814
2003-Jun-29 00:00 34.68244 25.04205 0.0537932608 17.3676808 1.81 6.46 0.001187
2003-Jun-30 00:00 45.46149 26.22461 0.0584248101 15.7413833 2.49 8.90 0.001855
- - - - - - - - - - - - - - - - - - - -
From Horizons (2003 June 22): JPL solution #10, # obs: 95 (1998-2003 June 21)
2003-Jun-27 00:00 10.34588 19.37391 0.0502807926 5.84281641 1.25 4.48 0.000769
2003-Jun-28 00:00 22.67457 22.76256 0.0509808337 6.57467859 0.61 2.18 0.000498
2003-Jun-29 00:00 34.68481 25.04265 0.0537937458 6.75818917 0.60 2.13 0.000306
2003-Jun-30 00:00 45.46367 26.22501 0.0584256837 6.49910442 1.12 4.00 0.000407
- - - - - - - - - - - - - - - - - - - -
From Jon Giorgini (2003 Jun 23)
Solutions and predict files at Goldstone and Arecibo have been
updated to solution #12 (101 opt. obs spanning 1998-Mar-25 to
2003-Jun-22). 3-sigma S & X-band uncertainties:
DATE Pointing S-band Dop X-band Dop Delay
(") Hz (sec)
----------------- --------- ---------- ---------- ----------
27-JUN-2003 00:00 5.190 1.224 4.378 0.000727
28-JUN-2003 00:00 5.895 0.580 2.076 0.000486
29-JUN-2003 00:00 6.109 0.528 1.888 0.000303
30-JUN-2003 00:00 5.918 1.039 3.716 0.000367
1-JUL-2003 00:00 5.497 1.522 5.445 0.000582
- - - - - - - - - - - - - - - - - - - -
From Jon Giorgini (2003 June 26):
1998 FH12 solution #17 has been established in OSOD at Arecibo
and Goldstone. With 131 optical observations 25-MAR-1998 to 25-JUN-2003,
3-sigma S & X-band uncertainties follow:
DATE Pointing S-band Dop X-band Dop Delay
(") Hz Hz (sec)
----------------- --------- ---------- ---------- ----------
27-JUN-2003 00:00 1.831 1.108 3.964 0.000401
28-JUN-2003 00:00 2.227 0.517 1.850 0.000334
29-JUN-2003 00:00 2.464 0.184 0.658 0.000287
30-JUN-2003 00:00 2.537 0.630 2.254 0.000294
1-JUL-2003 00:00 2.494 1.043 3.731 0.000359
- - - - - - - - - - - - - - - - - - - -
From Jon Giorgini (2003 June 28):
#1) Solution #25 fit looks good.
#2) I deleted one optical observation apparently pushed out by all the
radar data, added in the few new opticals, then generated solution #27. It
includes all the radar astrometry in the ADD file at Arecibo. Residuals
are fine (normalized radar resid RMS 0.527):
Resid Uncertainty
AR20030628.756944 181000 52.76219939 -14 Delay 0.793 1.000
AR20030628.470833 111800 51.8834544 -1 Delay -0.759 0.900
AR20030628.451389 105000 51.8310903 -1 Delay -3.406 4.000
AP20030628.442361 103700 -72460.2D0 -1 Doppler -0.185 0.500
AR20030627.708333 170000 50.3855855 -14 Delay -1.592 10.000
AR20030627.506944 121000 50.197184 -14 Delay -0.095 0.750
AR20030627.443056 103800 50.1488369 -1 Delay 0.416 0.900
AR20030627.416667 100000 50.135712 -1 Delay -0.150 4.000
AP20030627.407639 94700 -11523.1D0 -1 Doppler 0.246 0.500
---- Optical Residuals ---- RA Dec Total
Mean 0.160 0.107 0.193
Normalized RMS 0.526
No. optical observations: 137
----- Radar Residuals ----- Delay Doppler Radar+Optical
Normalized RMS 0.576 0.435 0.527
No. Delay, Doppler Obs.: 7, 2
The 3-sigma pointing uncertainties at S & X-band:
Date__(UT)__HR:MN POS_3sigma DOP_S-sig DOP_X-sig RT_delay-sig
----------------- ---------- --------- --------- ------------
2003-Jun-28 00:00 .582588219 0.25 0.88 0.000003
2003-Jun-29 00:00 .648994055 0.06 0.23 0.000005
2003-Jun-30 00:00 .708070348 0.21 0.74 0.000026
2003-Jul-01 00:00 .744943478 0.37 1.32 0.000056
2003-Jul-02 00:00 .760155619 0.50 1.79 0.000092
Doppler uncertainties this small are likely optimistic
#3) New predict files were generated at Arecibo and Goldstone.
NOTE: Directories were getting cluttered, so all pre-soln #27 files
were moved to an OSOD subdirectory called OLD.
#4) Goldstone bistatic files were produced (on stealth):
PRDX.OUT.14-01-14.X.s27 (DSS 14 xmit 8560 MHz, Arecibo rcv DOPPLER)
PUNCH.OUT.14-01-14.X.s27 (additional "straight" config requested Sat).
PRDX.OUT.14-14.X.s27 (DSS 14 xmit DOPPLER, DSS 14 rcv at 8560 MHz)
PUNCH.OUT.14-14.X.s27 (the config requested Friday)
#5) Arecibo bistatic "S-band" receiver predict files were produced
(on utuado):
PRDX.OUT.14-14-01.X.s27 (Differential)
PRDX.OUT.14-01-01.X.s27 ("straight" DSS 14 -> Arecibo RCV predicts)
Setups
Initial CW setup for the first track:
TX polarization RCP
RCV polarization LCP
Frequencies: 2
Dwell: 20 seconds
Bandwidth: 4000 Hz
Sampling interval: 2500 x 0.1 usec
VME FFT for PSD files: 4096 for 0.9766-Hz resn
Possible ranging setups:
---------------------------------------------------------------------------
127 x 64 10-usec single sample
baud 10 usec
code 127
gates 127
FFT 64
CLT 11
ncoh 2
bandwidth 394 Hz
resolution 6.15 Hz
TXOFF +60 Hz -> echo will be centered at +9.75 bins or in bin 32+10 = 42
incoh sums 64 => 10.4 sec/record
---------------------------------------------------------------------------
127 x 64 11-usec single sample, 5.6-Hz resolution.
baud 11 usec
code 127
gates 127
PRP 1397
FFT 64
CLT 11
ncoh 2
bandwidth 357.9 Hz
resolution 5.59 Hz
TXOFF TBD
-------------------------------------------------------------------------
127 x 64 11-usec single sample, 11.2-Hz resolution
baud 11 usec
code 127
gates 127
PRP 1397
FFT 64
CLT 11
ncoh 1
bandwidth 715.8 Hz
resolution 11.2 Hz
TXOFF +60 -> echo would be centered at +5 bins w/perfect ephemeris
-------------------------------------------------------------------------
127 x 64 7-usec single sample
------------------------------
baud 7 usec
code 127
gates 127
PRP 889
FFT 64
CLT 11
ncoh 1
bandwidth 1124.9 Hz
resolution 17.6 Hz
TXOFF +60 -> echo would be centered at +3.4 bins w/perfect ephemeris
-------------------------------------------------------------------------
127 x 64 1-usec single sample
------------------------------
baud 1 usec
code 127
gates 127
PRP 127
FFT 64
CLT 13 & 14, about evenly divided
ncoh 15
bandwidth 525 Hz
resolution 8.2 Hz
TXOFF +50 -> echo would be centered at +6.1 bins w/perfect ephemeris
-------------------------------------------------------------------------------
0.125-usec ranging
------------------
setup JX1XS001
baud 0.125 usec
code 127
gates 127
FFT 64
ncoh 1968
bandwidth 32.008 Hz
resolution 0.5001 Hz
TXOFF 6 Hz = 12 cells, => cell 44
incoh sums 4 looks=> 8 sec/record => expect records per run ~ RTT/8
CLT gate 34.8
_____________________________________________________________________
POSSIBLE RANGING SETUPS: (code=127, FFT=64, single-pol'n)
These are from JX, w/ max-band (min-acc) options from Ray Jurgens.
Currently configured for 5-sec records.
_______________________________________________________________________
Setup Baud RP 1-acc 1-acc
usec m usec band res acc band res
_______________________________________________________________________
JX1XS110 11.000 1650 1397.0 715.8 11.2 2 358 5.6
JX1XS070 7.000 1050 889.0 1124.9 17.6 3 375 5.9
JX1XS020 2.000 300 254.0 3937.0 61.5 12 328 5.1
4 984 15.4
JX1XS010 1.000 150 127.0 7874.0 123.0 41 192 3.0
8 984 15.4
JX1XS005 0.500 75 63.5 15748.0 246.1 123 128 2.0
15 1050 16.4
JX1XS002 0.250 37.5 31.75 31496.1 492.1 492 64 1.0
30 1050 16.4
JX1XS001 0.125 18.75 15.875 62992.1 984.3 1970 32 0.5
60 1050 16.4
____________________________________________________________________
Instructions
NOTE: Data should be moved to the appropriate subdirectories in
intruder:/d1/1998FH12/raw/
1998 FH12 POINTING:
OSOD and initial predicts have been set-up at
Goldstone on stealth:
/export/data2/osod/ops/1998fh12/
The predicts are also available at:
/export/data0/rosema/1998fh12/support/
POINTING
TX Offsets
Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD
2003 06 27 178 090000 14.9677 20.7641 A 50.1 17
2003 06 27 178 100000 15.4796 20.9138 A 50.2
2003 06 27 178 110000 15.9896 21.0616 A -0.0071 0.0020 50.2
2003 06 27 178 120000 16.4980 21.2071 AB 50.2
2003 06 27 178 130000 17.0050 21.3503 AB 50.2
2003 06 27 178 140000 17.5113 21.4908 B 50.3
2003 06 27 178 150000 18.0173 21.6287 B -0.0071 0.0019 50.3
2003 06 27 178 160000 18.5238 21.7638 B 50.3
2003 06 27 178 170000 19.0313 21.8962 B 50.4
2003 06 27 178 180000 19.5403 22.0259 B 50.4
2003 06 28 179 100000 27.8197 23.8657 A 51.8 17
2003 06 28 179 110000 28.3209 23.9676 A 51.9
2003 06 28 179 120000 28.8182 24.0669 A -0.0071 0.0014 52.0
2003 06 28 179 130000 29.3121 24.1636 AB 52.1
2003 06 28 179 140000 29.8029 24.2574 AB 52.2
2003 06 28 179 150000 30.2911 24.3482 B 52.3
2003 06 28 179 160000 30.7774 24.4359 B -0.0071 0.0013 52.5
2003 06 28 179 170000 31.2623 24.5206 B 52.6
2003 06 28 179 180000 31.7466 24.6024 B 52.7
2003 06 28 179 190000 32.2306 24.6813 B 52.9
2003 06 29 180 110000 39.8632 25.7188 A 55.6 23
2003 06 29 180 120000 40.3108 25.7720 A 55.7
2003 06 29 180 130000 40.7534 25.8230 A -0.00680 0.0008 55.9
2003 06 29 180 140000 41.1915 25.8716 A 56.1
2003 06 29 180 150000 41.6256 25.9176 AB 56.3
2003 06 29 180 160000 42.0562 25.9611 B 56.5
2003 06 29 180 170000 42.4840 26.0019 B -0.00670 0.0006 56.7
2003 06 29 180 180000 42.9096 26.0401 B 56.9
2003 06 29 180 190000 43.3335 26.0760 B 57.2
PRDX.OUT.s27
TRANSMITTER: STATION #14, RECEIVER: STATION #14
RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL
2003 JUN 29 10:50 55.5270554408 -433367.447 282.9302 25.7098 39.788 24.566
2003 JUN 29 11:00 55.5574781250 -434698.497 285.3620 25.7189 39.863 26.489
2003 JUN 29 11:10 55.5879952050 -436060.534 287.7939 25.7279 39.938 28.422
2003 JUN 29 11:20 55.6186088226 -437453.149 290.2259 25.7369 40.013 30.363
2003 JUN 29 11:30 55.6493211132 -438875.870 292.6581 25.7458 40.088 32.313
2003 JUN 29 11:40 55.6801341693 -440328.171 295.0905 25.7546 40.162 34.269
2003 JUN 29 11:50 55.7110500443 -441809.468 297.5229 25.7634 40.237 36.233
2003 JUN 29 12:00 55.7420707405 -443319.121 299.9555 25.7721 40.311 38.202
2003 JUN 29 12:10 55.7731982299 -444856.436 302.3883 25.7808 40.385 40.177
2003 JUN 29 12:20 55.8044344256 -446420.665 304.8211 25.7894 40.459 42.155
2003 JUN 29 12:30 55.8357811785 -448011.009 307.2542 25.7979 40.533 44.137
2003 JUN 29 12:40 55.8672402980 -449626.618 309.6873 25.8063 40.606 46.122
2003 JUN 29 12:50 55.8988135238 -451266.592 312.1206 25.8147 40.680 48.108
2003 JUN 29 13:00 55.9305025229 -452929.985 314.5540 25.8231 40.753 50.094
2003 JUN 29 13:10 55.9623089023 -454615.804 316.9875 25.8313 40.827 52.080
2003 JUN 29 13:20 55.9942342065 -456323.014 319.4212 25.8395 40.900 54.063
2003 JUN 29 13:30 56.0262798973 -458050.535 321.8549 25.8477 40.973 56.043
2003 JUN 29 13:40 56.0584473513 -459797.250 324.2888 25.8557 41.046 58.017
2003 JUN 29 13:50 56.0907378820 -461562.000 326.7228 25.8637 41.119 59.983
2003 JUN 29 14:00 56.1231527038 -463343.595 329.1569 25.8717 41.192 61.938
2003 JUN 29 14:10 56.1556929546 -465140.805 331.5912 25.8795 41.264 63.879
2003 JUN 29 14:20 56.1883596934 -466952.374 334.0255 25.8873 41.337 65.800
2003 JUN 29 14:30 56.2211538736 -468777.012 336.4600 25.8950 41.409 67.697
2003 JUN 29 14:40 56.2540763737 -470613.405 338.8945 25.9026 41.481 69.562
2003 JUN 29 14:50 56.2871279625 -472460.212 341.3292 25.9102 41.554 71.382
2003 JUN 29 15:00 56.3203093307 -474316.071 343.7639 25.9177 41.626 73.143
2003 JUN 29 15:10 56.3536210480 -476179.600 346.1988 25.9251 41.698 74.824
2003 JUN 29 15:20 56.3870636280 -478049.400 348.6337 25.9325 41.770 76.393
2003 JUN 29 15:30 56.4206374359 -479924.055 351.0688 25.9397 41.841 77.807
2003 JUN 29 15:40 56.4543427785 -481802.138 353.5039 25.9469 41.913 79.004
2003 JUN 29 15:50 56.4881798461 -483682.214 355.9391 25.9541 41.985 79.908
2003 JUN 29 16:00 56.5221487111 -485562.838 358.3744 25.9611 42.056 80.433
2003 JUN 29 16:10 56.5562493777 -487442.562 0.8097 25.9681 42.128 80.517
2003 JUN 29 16:20 56.5904817321 -489319.937 3.2452 25.9750 42.199 80.148
2003 JUN 29 16:30 56.6248455422 -491193.512 5.6807 25.9819 42.271 79.373
2003 JUN 29 16:40 56.6593405157 -493061.842 8.1163 25.9886 42.342 78.274
2003 JUN 29 16:50 56.6939662096 -494923.486 10.5519 25.9953 42.413 76.931
2003 JUN 29 17:00 56.7287221215 -496777.013 12.9876 26.0020 42.484 75.413
2003 JUN 29 17:10 56.7636076245 -498621.004 15.4234 26.0085 42.555 73.770
2003 JUN 29 17:20 56.7986220087 -500454.051 17.8592 26.0150 42.626 72.037
2003 JUN 29 17:30 56.8337644500 -502274.764 20.2951 26.0214 42.697 70.237
2003 JUN 29 17:40 56.8690340437 -504081.773 22.7311 26.0277 42.768 68.389
2003 JUN 29 17:50 56.9044297736 -505873.726 25.1671 26.0340 42.839 66.504
2003 JUN 29 18:00 56.9399505375 -507649.298 27.6031 26.0402 42.910 64.592
2003 JUN 29 18:10 56.9755951498 -509407.190 30.0392 26.0463 42.980 62.660
2003 JUN 29 18:20 57.0113623179 -511146.128 32.4753 26.0524 43.051 60.712
2003 JUN 29 18:30 57.0472506778 -512864.874 34.9115 26.0584 43.122 58.752
2003 JUN 29 18:40 57.0832587632 -514562.218 37.3477 26.0643 43.192 56.783
2003 JUN 29 18:50 57.1193850409 -516236.990 39.7840 26.0702 43.263 54.808
2003 JUN 29 19:00 57.1556278885 -517888.053 42.2202 26.0760 43.334 52.828
GOLDSTONE MASTERLOG
MASTERLOG
===================================================================================================
RCV
file setup runs start -stop osod OFFSET TX Poln
---------------------------------------------------------------------------------------------------
June 27
PSD03178.1998fh12, VOLT03178.1998fh12
CW 4 kHz, 2 hops, 20s dwell, 4k FFT 43 094340-105738 17 none RCP
fh17803 0.25 us x 2.00 Hz 50 112325-125131 17 +12 Hz RCP
fh17804 0.25 us x 2.00 Hz 49 125822-142620 17 +12 Hz RCP
fh17805 0.25 us x 2.00 Hz 50 145659-162511 17 +12 Hz RCP
fh17808 10 us x 6.15 Hz 6 165247-170236 17 +40 Hz (?) RCP
PSD03178A.1998fh12, VOLT03178A.1998fh12
CW 4 kHz, 2 hops, 20s dwell, 4k FFT 12 171455-173427 17 none RCP
---------------------------------------------------------------------------------------------------
June 28
PSD03179.1998fh12, VOLT03179.1998fh12
CW 4 kHz, 2 hops, 20s dwell, 4 k FFT 13 122108-124312 21? none RCP
fh17903 0.25 us x 2.00 Hz 16 130240-133047 21? +12 Hz RCP
fh17904 0.25 us x 2.00 Hz 12 140442-142537 23? +12 Hz RCP
fh17905 0.25 us x 2.00 Hz 50 143653-160705 23? +12 Hz RCP
fh17906 0.25 us x 2.00 Hz 50 162521-175540 23? +12 Hz RCP
fh17907 0.25 us x 2.00 Hz 9 175852-181417 23? +12 Hz RCP
---------------------------------------------------------------------------------------------------
June 29
PSD03180.1998fh12, VOLT03180.1998fh12
CW 4 kHz, 2 hops, 20s dwell, 4 k FFT 11 105619-111617 27 none RCP
PSD03180A.1998FH12, VOLT03180A.1998FH12
CW 4 kHz, 2 hops, 20s dwell, 4 k FFT 112 114551-151823 27 none RCP
PSD03180B.1998FH12, VOLT03180B.1998FH12
CW 4 kHz, 2 hops, 20s dwell, 4 k FFT 45 152954-165440 27 none RCP
===================================================================================================
ASTROMETRY
==========
2003 06 27 12:10:00 R 50.197184 0.75 8560.D6 -14 Benner, L.A.M.
Correction of -190 us to soln 17 from 1/4 us imaging. Echo wrapped
almost exactly 6 times thru the code (consistent w/Arecibo 4.0 us range).
2003 06 27 17:00:00 R 50.3855855 10.0 8560.D6 -14 Benner, L.A.M.
Correction of -190 us to solution 17 using 10 us ranging.
2003 06 28 18:10:00 R 52.76219939 1.0 8560.D6 -14 Benner, L.A.M.
Correction of +5.75 us to soln 23 from 15 minutes of 0.25 us imaging. Placed
COM at TE of echo, which is about 5 gates deep.
===================================================================================================
Dr. Lance A. M. Benner | PHONE: (818) 354-7412
Mail Stop 300-233 | FAX: (818) 354-9476
Jet Propulsion Laboratory | email: lance@reason.jpl.nasa.gov
Pasadena, CA 91109-8099 | Plan: To live long and prosper
Asteroid Radar Astronomy