2006 BQ6 Planning
Background
2006 BQ6 was discovered by the Mt. Lemmon Survey (University of Arizona) on January 22, 2006.
It will approach within 0.037 AU (14 lunar distances) of Earth on July 29.
Its physical properties are unknown, but its absolute magnitude of 19.5 suggests a diameter
within a factor of two of 400 meters. Using past experience as a guide, there is a 1/6 chance
that it is a binary.
Goldstone observations are scheduled on July 31, August 1, and August 3.
Radar observations previously scheduled at Arecibo have been cancelled due to problems with the
turbine generator.
Due to the proximity of its orbit to Earth and its diameter, 2006 BQ6 has been classified as a
"Potentially Hazardous Asteroid" by the Minor Planet Center.
These observations have benefited greatly from astrometry reported by Cristovao Jacques in Brazil
on July 27 and 29. His observations have reduced the plane-of-sky pointing errors significantly so
that pointing is no longer a problem.
Orbital and Physical Characteristics
orbit type Apollo
semimajor axis 1.473 AU
eccentricity 0.405
inclination 13.0°
perihelion distance 0.876 AU
aphelion distance 2.070 AU
absolute magnitude (H) 19.5
diameter 400 m +/- a factor of two (educated guesses)
rotation period a few hours
pole direction unknown
lightcurve amplitude unknown
spectral class unknown
Last updated: 2006 August 2
Discovery
M.P.E.C. 2006-B32 Issued 2006 Jan. 24, 03:16 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.
Supported in part by the Brinson Foundation
Supported in part by the TABASGO Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2006 BQ6
Observations:
K06B06Q* C2006 01 22.43948 09 13 10.34 +16 16 28.9 20.1 V EB032G96
K06B06Q C2006 01 22.44486 09 13 09.66 +16 16 27.0 20.1 V EB032G96
K06B06Q C2006 01 22.45021 09 13 09.01 +16 16 25.3 20.1 V EB032G96
K06B06Q C2006 01 22.45559 09 13 08.32 +16 16 23.1 20.4 V EB032G96
K06B06Q C2006 01 22.47978 09 13 05.26 +16 16 13.8 19.8 V EB032G96
K06B06Q C2006 01 22.48444 09 13 04.67 +16 16 11.8 19.8 V EB032G96
K06B06Q C2006 01 22.48910 09 13 04.11 +16 16 09.9 19.8 V EB032G96
K06B06Q C2006 01 22.49383 09 13 03.52 +16 16 08.2 19.6 V EB032G96
K06B06Q C2006 01 22.50079 09 13 02.64 +16 16 05.5 19.8 V EB032G96
K06B06Q C2006 01 22.50186 09 13 02.49 +16 16 05.1 19.7 V EB032G96
K06B06Q C2006 01 22.50294 09 13 02.35 +16 16 04.5 20.0 V EB032G96
K06B06Q C2006 01 22.50402 09 13 02.28 +16 16 03.9 19.8 V EB032G96
K06B06Q C2006 01 23.34294 09 11 19.93 +16 10 52.8 19.8 V EB032G96
K06B06Q C2006 01 23.35064 09 11 18.96 +16 10 49.9 19.6 V EB032G96
K06B06Q C2006 01 23.35825 09 11 17.95 +16 10 47.1 20.0 V EB032G96
K06B06Q C2006 01 23.36593 09 11 16.94 +16 10 44.1 20.4 V EB032G96
K06B06Q C2006 01 23.41488 09 11 10.60 +16 10 25.4 19.8 V EB032G96
K06B06Q C2006 01 23.42340 09 11 09.52 +16 10 22.1 19.7 V EB032G96
K06B06Q C2006 01 23.43189 09 11 08.41 +16 10 18.7 19.8 V EB032G96
K06B06Q C2006 01 23.44045 09 11 07.29 +16 10 15.5 19.9 V EB032G96
K06B06Q C2006 01 23.92966 09 10 06.49 +16 07 06.4 EB032A44
K06B06Q C2006 01 23.95095 09 10 03.69 +16 06 58.7 20.0 V EB032A44
K06B06Q C2006 01 23.96806 09 10 01.44 +16 06 52.2 20.0 V EB032A44
K06B06Q C2006 01 23.97825 09 10 00.18 +16 06 48.3 EB032246
K06B06Q C2006 01 23.97896 09 10 00.06 +16 06 47.8 EB032246
K06B06Q C2006 01 23.97998 09 09 59.96 +16 06 47.2 EB032246
K06B06Q C2006 01 23.98279 09 09 59.53 +16 06 46.5 20.0 V EB032A44
K06B06Q C2006 01 23.98448 09 09 59.27 +16 06 46.1 EB032246
Observer details:
246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha. Measurer M. Tichy.
1.06-m KLENOT Telescope + CCD.
A44 Altschwendt. Observer W. Ries. 0.30-m f/6 reflector + CCD.
G96 Mt. Lemmon Survey. Observer E. C. Beshore. Measurers E. C. Beshore,
E. J. Christensen, G. J. Garradd, A. D. Grauer, R. E. Hill, R. A. Kowalski,
S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
Orbital elements:
2006 BQ6 PHA, Earth MOID = 0.0024 AU
Epoch 2006 Mar. 6.0 TT = JDT 2453800.5 MPC
M 299.79375 (2000.0) P Q
n 0.57266480 Peri. 304.99668 -0.28368869 +0.94430577
a 1.4361586 Node 307.65155 -0.79679954 -0.32888774
e 0.3726062 Incl. 12.15861 -0.53350840 -0.01093003
P 1.72 H 19.5 G 0.15 U 9
Residuals in seconds of arc
060122 G96 0.3+ 0.1- 060122 G96 0.5- 0.2- 060123 A44 0.2- 0.2-
060122 G96 0.2+ 0.0 060122 G96 0.4+ 0.4- 060123 A44 0.4- 0.1+
060122 G96 0.5+ 0.3+ 060123 G96 0.3- 0.0 060123 A44 0.5- 0.1+
060122 G96 0.3+ 0.2+ 060123 G96 0.2+ 0.0 060123 246 0.7+ 0.1+
060122 G96 0.2- 0.2+ 060123 G96 0.1- 0.1+ 060123 246 0.3+ 0.1-
060122 G96 0.3- 0.0 060123 G96 0.3- 0.0 060123 246 0.8+ 0.3-
060122 G96 0.0 0.1- 060123 G96 0.0 0.0 060123 A44 0.2- 0.1-
060122 G96 0.0 0.0 060123 G96 0.4+ 0.0 060123 246 0.6- 0.3+
060122 G96 0.2- 0.0 060123 G96 0.2+ 0.1-
060122 G96 0.5- 0.0 060123 G96 0.1+ 0.0
Ephemeris:
2006 BQ6 a,e,i = 1.44, 0.37, 12 q = 0.9010
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 01 15 09 26.25 +16 59.4 0.662 1.611 156.0 14.4 20.4
2006 01 25 09 07.81 +16 00.4 0.585 1.564 170.1 6.2 19.8
2006 02 04 08 43.40 +14 46.8 0.532 1.515 173.5 4.2 19.4
.
.
.
2006 07 14 09 55.92 -20 59.7 0.145 0.941 55.3 117.4 19.8
2006 07 24 11 00.05 -23 27.5 0.0814 0.977 59.6 116.3 18.6
2006 08 03 15 07.64 -14 43.6 0.0414 1.021 98.1 79.6 15.4
2006 08 13 18 54.65 +08 17.9 0.0803 1.072 135.1 41.8 15.8
2006 08 23 19 53.21 +12 44.4 0.147 1.126 138.8 36.2 17.1
2006 09 02 20 19.47 +13 21.4 0.220 1.182 138.3 34.6 18.0
2006 09 12 20 37.43 +12 55.4 0.299 1.240 136.2 34.2 18.8
2006 09 22 20 52.93 +12 08.3 0.385 1.297 133.0 34.5 19.4
2006 10 02 21 08.10 +11 18.8 0.478 1.354 129.0 35.1 20.0
Gareth V. Williams (C) Copyright 2006 MPC M.P.E.C. 2006-B32
SNR Calculation
Target Name: 2006 BQ6
HMag: 19.5
Diameter: 0.4 km
Period: 4 h (a standard guess)
------------GOLDSTONE---------- -------------ARECIBO-----------
Max Max
Dat Run UTC Dat Run UTC
Date RA Decl Delta Runs SNR SNR Window Runs SNR SNR Window
2006 7 23 98 -5 0.056 249 65 5 14:18-22:18 0 0 0 -
2006 7 24 94 -2 0.052 277 95 6 13:48-22:06 8 420 150 -
2006 7 25 89 1 0.047 309 140 9 13:18-21:53 49 1900 300 13:35-14:54
2006 7 26 84 5 0.043 344 200 12 12:35-21:41 73 3700 480 12:54-14:48
2006 7 27 77 9 0.040 381 270 15 11:54-21:23 93 5600 620 12:05-14:30
2006 7 28 69 14 0.038 415 340 18 11:05-21:00 107 7400 750 11:24-14:00
2006 7 29 60 19 0.037 443 390 20 10:11-20:36 112 8400 830 10:41-13:24
2006 7 30 50 24 0.037 459 390 20 9:18-20:06 110 8200 820 10:00-12:41
2006 7 31 40 28 0.038 461 350 18 8:24-19:30 100 6900 740 9:24-11:48
2006 8 1 31 31 0.041 451 280 15 7:30-18:53 87 5100 600 8:48-11:00
2006 8 2 22 33 0.044 431 210 11 6:47-18:18 74 3500 470 8:18-10:11
2006 8 3 14 34 0.048 405 150 8 6:05-17:48 64 2300 330 7:47- 9:30
2006 8 4 7 34 0.052 378 110 6 5:35-17:18 57 1600 240 7:17- 9:00
2006 8 5 1 35 0.057 351 77 5 5:05-16:53 52 1100 170 6:54- 8:30
2006 8 6 356 34 0.062 325 55 3 4:47-16:30 48 780 130 6:30- 8:05
2006 8 7 352 34 0.067 302 39 3 4:24-16:06 46 580 98 6:05- 7:47
2006 8 8 349 34 0.073 281 29 2 4:12-15:48 44 440 76 5:47- 7:30
Track Assignments
2006 BQ6 tracks
UT UT PDT Duration Delta
DOY Date TX Window TX Window hh:mm (seconds)
--- ---- --------- --------- ------- ---------
212 Jul 31 0815-1215 0115-0515 4:00 39
213 Aug 01 0820-1400 0120-0700 5:40 42
215 Aug 03 0930-1430 0230-0730 5:00 50
Observations previously scheduled at Arecibo have been cancelled due to problems with the
turbine generator.
Uncertainties
From Horizons, 2006 July 20: Solution 17, # obs: 115 (92 days)
Date__(UT)__HR:MN R.A._(a-appar)_DEC. delta POS_3sigma DOP_S-sig DOP_X-sig RT_delay-sig
2006-Jul-26 00:00 83.49 4.91 0.04335 263.36 17.84 63.82 0.024456
2006-Jul-27 00:00 76.73 9.36 0.04031 285.88 13.45 48.12 0.020927
2006-Jul-28 00:00 68.86 14.27 0.03819 300.60 9.91 35.44 0.019144
2006-Jul-29 00:00 59.95 19.30 0.03712 302.84 9.88 35.35 0.020065
2006-Jul-30 00:00 50.25 23.98 0.03721 290.99 13.64 48.80 0.023108
2006-Jul-31 00:00 40.25 27.90 0.03843 268.14 18.43 65.92 0.026757
2006-Aug-01 00:00 30.53 30.81 0.04067 240.24 22.75 81.36 0.029922
2006-Aug-02 00:00 21.58 32.73 0.04379 212.64 26.14 93.50 0.032192
2006-Aug-03 00:00 13.67 33.85 0.04760 188.30 28.62 102.35 0.033571
2006-Aug-04 00:00 6.87 34.39 0.05195 168.03 30.32 108.45 0.034226
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
From Jon Giorgini, 2006 July 27:
Including the new recovery data reported by I77 (Cristovao Jacques) in a new
solution #19 for 2006 BQ6, now with 118 optical observations (2006-Jan-22 to
2006-Jul-27), formal 3-sigma X-band uncertainties are as shown below.
The recovery was ~ 89" in RA*cos(DEC) away from solution #17 prediction and
2.7" off in DEC (slightly less than 1-sigma off predict).
Date__(UT)__HR:MN POS_3sigma DOP_X-sig RT_delay-sig
2006-Jul-30 00:00 5.43853473 2.56 0.003068
2006-Jul-31 00:00 6.85359402 6.76 0.002984
2006-Aug-01 00:00 7.81342300 12.09 0.002937
2006-Aug-02 00:00 8.29721309 16.63 0.002944
2006-Aug-03 00:00 8.41391933 20.30 0.003011
2006-Aug-04 00:00 8.29665484 23.18 0.003137
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
From Jon Giorgini, 2006 July 30:
With 121 observations (2006-Jan-22 to 2006-Jul-29), 2006 BQ6 solution #22 was
computed. Formal 3-sigma X-band uncertainties are shown below.
Solution #22 differed from solution #19 (the last update) by about 3" in
RA*cos(DEC), or about 2.3-sigma. So there may have been/is some arcsecond level
systematic in the last two batches of data (recovery and the latest one).
Date__(UT)__HR:MN POS_3sigma DOP_X-sig RT_delay-sig
2006-Jul-31 00:00 3.26739420 5.64 0.002261
2006-Aug-01 00:00 3.93620934 10.87 0.002305
2006-Aug-02 00:00 4.37003497 15.29 0.002398
2006-Aug-03 00:00 4.59367624 18.85 0.002541
2006-Aug-04 00:00 4.66762747 21.66 0.002727
Setups
Plans for the August 3 track
----------------------------
We will use solution 26
We will devote the whole track to CW observations using the setup below.
Note that we will use four hops instead of the usual two.
Echoes on Aug.3 will not be strong enough for 1/8 usec imaging.
Standard CW setup
-----------------
TX polarization RCP
RCV polarization LCP
Frequencies: 4
Dwell: 10 seconds
Bandwidth: 4000 Hz
Sampling interval: 250 x 0.1 usec
VME FFT for PSD files: 4096 for 0.98-Hz resolution
Then we'll do 10 usec and 1 usec ranging, followed by 1/8 usec imaging for
the rest of the track.
Possible ranging setups:
---------------------------------------------------------------------------
127 x 64 10-usec single sample
baud 10 usec
code 127
gates 127
FFT 64
CLT 2 (VME)
ncoh 1
bandwidth 787.4 Hz
resolution 12.30 Hz
TXOFF +100 Hz -> echo will be centered at +8.1 bins or in bin 32 + 8.1 = 40
---------------------------------------------------------------------------
127 x 64 11-usec single sample, 11.2-Hz resolution.
baud 11 usec
code 127
gates 127
PRP 1397
FFT 64
CLT 2 (VME)
ncoh 1
bandwidth 715.8 Hz
resolution 11.18 Hz
TXOFF +100 Hz --> echo will be centered at +8.9 bins or in bin 32 + 8.9 = 41
-------------------------------------------------------------------------
127 x 64 7-usec single sample
------------------------------
baud 7 usec
code 127
gates 127
PRP 889
FFT 64
CLT ??
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 4
ncoh 15
bandwidth 525 Hz
resolution 8.2 Hz
TXOFF +100 -> echo would be centered at +12.2 bins or in bin 32 + 12.2 = 44
-------------------------------------------------------------------------------
0.125-usec ranging (left over from the 1992 UY4 observations in August, 2005)
------------------
setup JX1XS001 revised
baud 0.125 usec
code 127
gates 127
FFT 64
ncoh 984
bandwidth 64.016384 Hz
resolution 1.000256 Hz
TXOFF We used 10 Hz, placing COM in cell 32+10=42
Henceforth use 15 Hz, to put COM in 32+15=47
incoh sums 4 looks=> 8 sec/record => expect records per run ~ RTT/8
PFS CLT gate 21
_____________________________________________________________________
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
stealth:/export/data0/rosema/2006BQ6/raw/
2006 BQ6 POINTING:
OSOD and predicts are at Goldstone on stealth:
/export/data2/osod/ops/2006bq6/PRDX.OUT.s26
/PUNCH.OUT.s26
/EPH.OUT.s26
and have been copied to:
/export/data0/rosema/2006BQ6/support/
POINTING
TX Offsets
Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD
2006 07 31 212 080000 37.0619 29.0149 A 39.0 22
2006 07 31 090000 36.6489 29.1491 A 0.0045 0.0014 39.0
2006 07 31 100000 36.2328 29.2809 AB 39.1
2006 07 31 110000 35.8141 29.4099 B 0.0045 0.0014 39.2
2006 07 31 120000 35.3938 29.5356 BC 39.3
2006 07 31 130000 34.9728 29.6579 C 0.0046 0.0013 39.4
2006 07 31 140000 34.5523 29.7766 C 39.5
2006 08 01 213 080000 27.5346 31.5913 A 41.5 26
2006 08 01 090000 27.1488 31.6830 A 0.0045 0.0011 41.6
2006 08 01 100000 26.7611 31.7722 AB 41.7
2006 08 01 110000 26.3723 31.8585 B 0.0045 0.0010 41.9
2006 08 01 120000 25.9832 31.9415 BC 42.0
2006 08 01 130000 25.5950 32.0212 C 0.0045 0.0010 42.1
2006 08 01 140000 25.2087 32.0976 C 42.3
2006 08 03 215 090000 11.0301 34.1581 A 49.0 26
2006 08 03 100000 10.7307 34.1854 A 0.0041 0.0004 49.2
2006 08 03 110000 10.4318 34.2104 AB 49.4
2006 08 03 120000 10.1342 34.2330 B 0.0041 0.0003 49.6
2006 08 03 130000 9.8389 34.2532 BC 49.7
2006 08 03 140000 9.5468 34.2710 C 0.0041 0.0003 49.9
2006 08 03 150000 9.2587 34.2868 C 50.1
PRDX.OUT.s26
TRANSMITTER: STATION #14, RECEIVER: STATION #14
RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL
2006 AUG 03 09:30 49.1097108024 -415995.732 326.5567 34.1720 10.880 62.640
2006 AUG 03 09:40 49.1389051937 -417020.666 329.1135 34.1766 10.831 64.710
2006 AUG 03 09:50 49.1681720632 -418063.569 331.6702 34.1810 10.781 66.784
2006 AUG 03 10:00 49.1975126212 -419123.029 334.2269 34.1854 10.731 68.861
2006 AUG 03 10:10 49.2269279866 -420197.598 336.7837 34.1898 10.681 70.941
2006 AUG 03 10:20 49.2564191496 -421285.800 339.3404 34.1940 10.631 73.024
2006 AUG 03 10:30 49.2859870219 -422386.129 341.8971 34.1982 10.581 75.107
2006 AUG 03 10:40 49.3156324089 -423497.054 344.4537 34.2024 10.531 77.191
2006 AUG 03 10:50 49.3453559815 -424617.023 347.0103 34.2064 10.482 79.274
2006 AUG 03 11:00 49.3751583362 -425744.463 349.5669 34.2104 10.432 81.353
2006 AUG 03 11:10 49.4050399239 -426877.788 352.1235 34.2144 10.382 83.423
2006 AUG 03 11:20 49.4350011184 -428015.398 354.6800 34.2182 10.332 85.469
2006 AUG 03 11:30 49.4650421463 -429155.683 357.2365 34.2220 10.283 87.432
2006 AUG 03 11:40 49.4951631559 -430297.027 359.7929 34.2258 10.233 88.788
2006 AUG 03 11:50 49.5253641475 -431437.813 2.3493 34.2294 10.184 87.731
2006 AUG 03 12:00 49.5556450425 -432576.422 4.9056 34.2330 10.134 85.801
2006 AUG 03 12:10 49.5860056186 -433711.240 7.4618 34.2365 10.085 83.762
2006 AUG 03 12:20 49.6164455581 -434840.659 10.0180 34.2400 10.035 81.696
2006 AUG 03 12:30 49.6469644306 -435963.080 12.5741 34.2434 9.986 79.619
2006 AUG 03 12:40 49.6775616772 -437076.920 15.1301 34.2467 9.937 77.538
2006 AUG 03 12:50 49.7082366584 -438180.610 17.6861 34.2500 9.888 75.456
2006 AUG 03 13:00 49.7389885996 -439272.601 20.2419 34.2532 9.839 73.374
2006 AUG 03 13:10 49.7698166184 -440351.367 22.7977 34.2563 9.790 71.294
2006 AUG 03 13:20 49.8007197524 -441415.407 25.3534 34.2594 9.741 69.216
2006 AUG 03 13:30 49.8316969087 -442463.249 27.9090 34.2624 9.692 67.141
2006 AUG 03 13:40 49.8627469012 -443493.452 30.4645 34.2653 9.644 65.070
2006 AUG 03 13:50 49.8938684438 -444504.609 33.0199 34.2682 9.595 63.003
2006 AUG 03 14:00 49.9250601533 -445495.353 35.5751 34.2710 9.547 60.940
2006 AUG 03 14:10 49.9563205605 -446464.353 38.1303 34.2738 9.498 58.882
2006 AUG 03 14:20 49.9876480783 -447410.323 40.6853 34.2765 9.450 56.830
2006 AUG 03 14:30 50.0190410660 -448332.022 43.2403 34.2792 9.402 54.784
GOLDSTONE MASTERLOG
==============================================================================
RCV TX
setup runs start -stop osod OFFSET Poln Notes
------------------------------------------------------------------------------
July 31
CW 4 kHz, 2 hops, 10 s dwell 10 084238-085515 22 None RCP
10 usec, ncoh=1, 127 code 3 094926-095242 22 +100 Hz RCP BAD
10 usec, ncoh=1, 127 code 5 095334-095930 22 +100 Hz RCP
11 usec, ncoh=1, 127 code 2 101137-101334 22 +100 Hz RCP
1 usec, ncoh=15, 127 code 24 102517-105634 22 +100 Hz RCP
1 usec, ncoh=15, 127 code 4 105905-110341 24 +100 Hz RCP
1/8 usec,ncoh=984, 127 code 60 112657-124615 24 +15 Hz RCP
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
August 1
CW 4 kHz, 2 hops, 10 s dwell 10 110046-111419 26 None RCP
1/8 usec, ncoh=984, 127 code 100 113743-140020 26 +15 Hz RCP
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
August 3
CW 4 kHz, 4 hops, 10 s dwell 66 094706-113820 26 None RCP
CW 4 kHz, 4 hops, 10 s dwell 5 115200-115935 26 None RCP
CW 4 kHz, 4 hops, 10 s dwell 82 121138-143006 26 None RCP
==============================================================================
RADAR ASTROMETRY
2006 07 31 10:10:00 R 39.133232 20.0 8560.D6 -14 Benner, L.A.M.
Correction of +270 usec to soln 22 from 10 and 11 usec ranging.
2006 07 31 11:00:00 R 39.204486 1.0 8560.D6 -14 Benner,L.A.M.
Correction of +2 usec to soln 24 from 1 usec ranging. Placed
COM at TE of echo, which is two 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
http://echo.jpl.nasa.gov/asteroids/2006BQ6/html/2006BQ6_planning.html
Asteroid Radar Astronomy