139622 (2001 QQ142)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3101068036 ± 2.86e-09
Semi-major axis (a)1.4205057393 AU ± 2.08e-10
Inclination (i)9.33914957° ± 3.61e-07
Long. of Asc. Node (Ω)83.16295445° ± 3.76e-07
Arg. of Perihelion (ω)337.96597464° ± 1.56e-06
Mean Anomaly (M)63.67466159° ± 6.57e-07
Mean Motion (n)0.5821672723°/day ± 1.28e-10
Perihelion dist (q)0.97999725 AU ± 4.07e-09
Aphelion dist (Q)1.86101423 AU ± 4.08e-09
Orbital Period1.69302936 yr ± 3.71e-10
Physical Parameters
H (abs. magnitude)18.46
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.192″
Uncertainty0
Orbit TypeApollo
MOID0.010618 AU
Observations Used1053
Radar Obs Used8
Oppositions9
Arc Total2001-2024
First Observation Used2001-08-22
Last Observation Used2024-05-02
Observations (1166)
Date Type RA Dec Mag Band Observatory
2002-02-21 12:20:06 C 13 04 21.32 +24 03 00.4 d 291
2002-03-10 21:36:39 C 12 32 29.73 +27 39 40.2 c 113
2002-03-10 21:39:34 C 12 32 29.37 +27 39 41.3 c 113
2002-03-10 21:43:28 C 12 32 29.03 +27 39 42.6 c 113
2002-03-10 21:47:26 C 12 32 28.66 +27 39 43.7 c 113
2002-03-10 21:51:23 C 12 32 28.32 +27 39 44.7 c 113
2002-03-11 01:46:07 C 12 32 06.78 +27 40 53.5 c 118
2002-03-11 01:52:19 C 12 32 06.21 +27 40 55.1 c 118
2002-03-11 02:01:58 C 12 32 05.31 +27 40 57.8 c 118
2002-03-11 02:04:51 C 12 32 05.06 +27 40 58.4 c 118
2002-03-21 05:57:33 C 12 11 03.03 +28 10 22.5 18.0 c 704
2002-03-21 06:15:02 C 12 11 01.53 +28 10 21.9 18.5 c 704
2002-03-21 06:34:36 C 12 10 59.85 +28 10 20.7 18.5 c 704
2002-03-21 06:51:21 C 12 10 58.43 +28 10 20.2 18.3 c 704
2002-03-21 07:08:09 C 12 10 56.94 +28 10 19.5 18.6 c 704
2002-04-02 06:33:17 C 11 50 38.25 +27 11 20.0 c 658
2002-04-02 06:36:51 C 11 50 38.03 +27 11 19.0 c 658
2002-04-02 06:38:38 C 11 50 37.92 +27 11 18.4 c 658
2002-04-02 20:26:42 C 11 49 50.72 +27 06 23.8 c 113
2002-04-02 20:35:28 C 11 49 50.18 +27 06 21.4 c 113
2002-04-02 20:39:52 C 11 49 49.94 +27 06 20.0 c 113
2002-04-02 20:44:15 C 11 49 49.67 +27 06 18.0 c 113
2002-04-10 03:15:47 C 11 41 29.72 +25 52 21.4 19.8 c 644
2002-04-10 03:45:44 C 11 41 28.43 +25 52 07.0 20.0 c 644
2002-04-10 04:16:45 C 11 41 27.17 +25 51 52.7 19.4 c 644
2002-04-11 03:18:24 C 11 40 35.18 +25 40 37.7 o 644
2002-04-11 03:48:37 C 11 40 34.00 +25 40 22.6 o 644
2002-04-11 04:18:53 C 11 40 32.77 +25 40 08.4 o 644
2002-04-18 07:30:56 C 11 35 44.41 +24 08 21.6 c 658
2002-04-18 07:35:04 C 11 35 44.32 +24 08 18.7 c 658
2002-04-18 07:39:33 C 11 35 44.24 +24 08 16.6 c 658
2002-05-19 04:47:27 C 11 41 30.83 +16 17 21.9 d 291
2002-05-19 04:53:27 C 11 41 31.02 +16 17 17.8 d 291
2002-05-19 04:59:19 C 11 41 31.19 +16 17 14.4 d 291
2004-03-21 10:55:08 C 16 55 14.25 -13 39 25.9 d 291
2004-03-21 11:00:53 C 16 55 14.41 -13 39 26.4 d 291
2004-03-21 11:06:32 C 16 55 14.64 -13 39 26.8 d 291
2004-03-21 11:45:29 C 16 55 15.77 -13 39 25.9 d 291
2004-03-21 12:00:47 C 16 55 16.14 -13 39 28.0 d 291
2004-04-20 10:18:28 C 16 55 45.77 -13 30 23.9 d 291
2004-04-20 10:31:51 C 16 55 45.36 -13 30 23.8 d 291
2004-04-20 10:44:51 C 16 55 44.95 -13 30 23.4 d 291
2004-05-28 06:17:32 C 16 00 05.93 -13 45 12.4 d 291
2004-05-28 06:27:00 C 16 00 05.17 -13 45 13.2 d 291
2004-05-28 06:35:48 C 16 00 04.47 -13 45 13.8 d 291
2006-07-18 16:19:42 C 22 11 40.45 -30 17 54.3 r E12
2006-07-18 17:03:46 C 22 11 40.34 -30 18 38.3 r E12
2006-07-18 17:25:21 C 22 11 40.34 -30 18 59.9 r E12
2006-08-13 16:27:46 C 21 53 46.89 -42 52 12.8 r E12
2006-08-13 16:51:33 C 21 53 45.27 -42 52 42.1 r E12
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2023-12-05 16:02:00 49349.834 0.38 Hz 7159.45 -47 -43
2023-12-06 10:30:00 27749.164 0.4 Hz 8560 -14 -14
2023-12-06 10:50:00 36889356.5 1 us 8560 -14 -14
2023-12-06 11:10:00 36885883.95 0.5 us 8560 -14 -14
2023-12-09 09:20:00 38056613 1 us 8560 -14 -14
2023-12-11 09:10:00 40587038.78 0.5 us 8560 -14 -14
2023-12-13 12:40:00 44568549.76 0.375 us 8560 -14 -14
2023-12-24 06:50:00 75184288 1 us 8560 -14 -14
Station codes
-47 DSS-47 ATCA (W196) -43 DSS-43 Tidbinbilla (70-m) -14 DSS-14 Goldstone (70-m)