NEODyS-2

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(99942) Apophis  ▹ 
OBSERVATIONAL INFORMATION

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Designation Type N Date and time Radar range/range rate trx station rec station Quality
yr-mo-day hh:mm:ss type km or km/day precision a priori rms F bias residual χ used
Apophis c 2005-01-27 23:31:00 DOP 5.48782e+5 1.36040 1.36040 F 0.00000 0.26464 251 251 0.19 Yes
Apophis c 2005-01-29 00:00:00 DOP 5.57835e+5 1.36040 1.36040 F 0.00000 -0.06500 251 251 0.05 Yes
Apophis c 2005-01-29 00:00:00 DEL 2.87844e+7 0.59958 0.59958 F 0.00000 0.21627 251 251 0.53 Yes
Apophis c 2005-01-30 00:18:00 DEL 2.93509e+7 0.67453 0.67453 F 0.00000 0.23462 251 251 0.46 Yes
Apophis c 2005-01-30 00:18:00 DOP 5.64838e+5 0.81624 0.81624 F 0.00000 -0.30967 251 251 0.38 Yes
Apophis c 2005-08-07 17:07:00 DOP -4.45494e+4 1.08832 1.08832 F 0.00000 0.26761 251 251 0.25 Yes
Apophis c 2006-05-06 12:49:00 DOP 6.43508e+5 0.54416 0.54416 F 0.00000 -0.03826 251 251 0.07 Yes
Apophis c 2012-12-21 11:10:00 DOP -8.77409e+4 0.37824 0.37824 F 0.00000 -0.01929 253 253 0.05 Yes
Apophis c 2012-12-22 11:00:00 DOP -8.75712e+4 0.15130 0.15130 F 0.00000 0.07107 253 253 0.47 Yes
Apophis c 2012-12-22 11:00:00 DEL 1.53918e+7 0.03747 0.03747 F 0.00000 -0.02181 253 253 1.21 Yes
Apophis c 2013-01-03 09:20:00 DOP -5.54191e+4 0.15130 0.15130 F 0.00000 0.02273 253 253 0.15 Yes
Apophis c 2013-01-03 09:20:00 DEL 1.46073e+7 0.03747 0.03747 F 0.00000 0.00437 253 253 0.13 Yes
Apophis c 2013-01-03 10:00:00 DEL 1.46058e+7 0.44969 0.44969 F 0.00000 -0.07242 253 253 0.16 Yes
Apophis c 2013-01-03 10:50:00 DEL 1.46042e+7 0.03747 0.03747 F 0.00000 0.00445 253 253 0.13 Yes
Apophis c 2013-01-05 08:40:00 DOP -4.60004e+4 0.30259 0.30259 F 0.00000 -0.12836 253 253 0.42 Yes
Apophis c 2013-01-05 10:40:00 DEL 1.45267e+7 0.03747 0.03747 F 0.00000 -0.01510 253 253 0.43 Yes
Apophis c 2013-01-05 10:40:00 DOP -3.03066e+4 0.15130 0.15130 F 0.00000 0.09673 253 253 0.64 Yes
Apophis c 2013-01-05 10:50:00 DEL 1.45265e+7 0.44969 0.44969 F 0.00000 -0.08639 253 253 0.19 Yes
Apophis c 2013-01-06 08:20:00 DOP -4.03370e+4 0.15130 0.15130 F 0.00000 0.12446 253 253 0.82 Yes
Apophis c 2013-01-06 09:30:00 DOP -3.14322e+4 0.15130 0.15130 F 0.00000 -0.03384 253 253 0.22 Yes
Apophis c 2013-01-08 08:10:00 DOP -2.34457e+4 0.15130 0.15130 F 0.00000 0.04691 253 253 0.31 Yes
Apophis c 2013-01-09 08:00:00 DEL 1.44577e+7 0.02998 0.02998 F 0.00000 0.01871 253 253 0.68 Yes
Apophis c 2013-01-09 08:00:00 DOP -1.46306e+4 0.15130 0.15130 F 0.00000 0.03984 253 253 0.26 Yes
Apophis c 2013-01-09 09:20:00 DOP -4.07050e+3 0.15130 0.15130 F 0.00000 0.05095 253 253 0.34 Yes
Apophis c 2013-01-10 08:00:00 DOP -3.91990e+3 0.15130 0.15130 F 0.00000 -0.02557 253 253 0.17 Yes
Apophis c 2013-01-10 08:00:00 DEL 1.44609e+7 0.02998 0.02998 F 0.00000 0.01002 253 253 0.36 Yes
Apophis c 2013-01-10 09:40:00 DEL 1.44611e+7 0.02998 0.02998 F 0.00000 0.00796 253 253 0.29 Yes
Apophis c 2013-01-11 07:20:00 DOP 2.40502e+3 0.30259 0.30259 F 0.00000 -0.13297 253 253 0.44 Yes
Apophis c 2013-01-14 08:10:00 DOP 4.62391e+4 0.15130 0.15130 F 0.00000 0.11037 253 253 0.73 Yes
Apophis c 2013-01-14 08:10:00 DEL 1.45787e+7 0.02998 0.02998 F 0.00000 -0.00848 253 253 0.33 Yes
Apophis c 2013-01-14 09:50:00 DEL 1.45824e+7 0.02998 0.02998 F 0.00000 -0.00295 253 253 0.11 Yes
Apophis c 2013-01-15 06:30:00 DOP 4.63972e+4 0.15130 0.15130 F 0.00000 0.01934 253 253 0.13 Yes
Apophis c 2013-01-16 06:30:00 DEL 1.47028e+7 0.14990 0.14990 F 0.00000 -0.07538 253 253 0.51 Yes
Apophis c 2013-01-16 06:30:00 DOP 5.98869e+4 0.30259 0.30259 F 0.00000 0.15029 253 253 0.5 Yes
Apophis c 2013-01-16 07:50:00 DOP 7.05671e+4 0.15130 0.15130 F 0.00000 -0.10434 253 253 0.69 Yes
Apophis c 2013-01-17 06:20:00 DOP 7.24337e+4 0.15130 0.15130 F 0.00000 0.03415 253 253 0.23 Yes
Apophis c 2013-02-18 00:56:00 DOP 4.17701e+5 1.08832 1.08832 F 0.00000 -0.00741 251 251 0.01 Yes
Apophis c 2013-02-18 01:37:00 DEL 2.36696e+7 0.03747 0.03747 F 0.00000 -0.03210 251 251 1.2 Yes
Apophis c 2013-02-18 01:37:00 DOP 4.24671e+5 1.08832 1.08832 F 0.00000 0.39166 251 251 0.36 Yes
Apophis c 2013-02-19 01:08:00 DOP 4.25021e+5 1.08832 1.08832 F 0.00000 0.00162 251 251 0 Yes
Apophis c 2013-02-20 00:38:00 DOP 4.24828e+5 1.08832 1.08832 F 0.00000 -0.11028 251 251 0.1 Yes
Apophis c 2013-02-20 01:26:00 DEL 2.45199e+7 0.03747 0.03747 F 0.00000 0.01586 251 251 0.62 Yes
Apophis c 2013-02-20 01:26:00 DOP 4.32940e+5 1.08832 1.08832 F 0.00000 -0.11519 251 251 0.11 Yes
Apophis c 2013-02-21 01:04:00 DOP 4.33681e+5 1.08832 1.08832 F 0.00000 -0.15112 251 251 0.14 Yes
Apophis c 2013-03-15 23:59:00 DEL 3.52587e+7 0.29979 0.29979 F 0.00000 0.44904 251 251 2.23 Yes
Apophis c 2013-03-15 23:59:00 DOP 4.40648e+5 1.29510 1.29510 F 0.00000 -0.78318 251 251 0.6 Yes

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