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
2009-04-20 07:47:04 C 15 41 43.30 -06 01 51.9 o 691
2009-04-20 08:12:28 C 15 41 41.68 -06 01 48.3 o 691
2009-04-20 08:37:52 C 15 41 40.08 -06 01 44.3 o 691
2011-07-18 06:58:33 C 18 45 27.68 -33 48 34.3 o 807
2011-07-18 07:04:36 C 18 45 27.08 -33 48 37.1 o 807
2011-07-18 07:10:39 C 18 45 26.48 -33 48 39.9 o 807
2011-12-17 05:29:49 C 22 27 58.726 -18 38 17.66 L F51
2011-12-17 05:37:27 C 22 27 59.825 -18 38 08.25 L F51
2011-12-17 05:45:03 C 22 28 00.900 -18 37 59.10 L F51
2011-12-17 05:56:49 C 22 28 02.608 -18 37 44.49 L F51
2013-10-08 11:49:04 C 09 29 36.71 +15 02 02.3 q G96
2013-10-08 11:56:12 C 09 29 37.89 +15 01 59.8 q G96
2013-10-08 12:03:21 C 09 29 39.05 +15 01 57.6 q G96
2013-10-08 12:10:32 C 09 29 40.24 +15 01 54.6 q G96
2014-01-02 12:41:46 C 13 47 59.39 +00 03 22.0 q G96
2014-01-02 12:50:01 C 13 48 00.13 +00 03 19.3 q G96
2014-01-02 12:58:14 C 13 48 00.85 +00 03 17.0 q G96
2014-01-02 13:06:29 C 13 48 01.56 +00 03 15.0 q G96
2014-02-28 14:20:01 C 15 03 18.951 -00 24 08.38 L F51
2014-02-28 14:37:40 C 15 03 19.087 -00 24 04.52 L F51
2014-02-28 14:55:23 C 15 03 19.223 -00 24 00.48 L F51
2014-02-28 15:13:00 C 15 03 19.356 -00 23 56.48 L F51
2014-03-29 07:58:00 C 14 48 12.88 +03 07 17.6 R G45
2014-03-29 08:47:17 C 14 48 10.04 +03 07 34.3 R G45
2014-03-29 08:47:24 C 14 48 10.01 +03 07 33.5 R G45
2014-03-29 09:03:42 C 14 48 09.14 +03 07 40.1 R G45
2014-03-29 09:27:07 C 14 48 07.86 +03 07 47.0 R G45
2014-03-30 08:06:32 C 14 46 52.84 +03 15 25.6 R G45
2014-03-30 08:22:56 C 14 46 51.85 +03 15 30.8 R G45
2014-03-30 08:39:23 C 14 46 50.96 +03 15 36.8 R G45
2014-03-30 09:12:05 C 14 46 48.98 +03 15 48.0 R G45
2014-03-30 09:12:11 C 14 46 48.98 +03 15 46.9 R G45
2014-04-05 10:13:42 C 14 37 51.463 +04 02 25.29 L F51
2014-04-05 10:31:22 C 14 37 50.235 +04 02 30.70 L F51
2014-04-05 10:49:00 C 14 37 49.009 +04 02 36.08 L F51
2014-04-21 08:41:59 C 14 09 30.24 +05 26 58.1 q 703
2014-04-21 08:53:39 C 14 09 29.21 +05 26 59.5 q 703
2014-04-21 09:17:01 C 14 09 27.45 +05 27 01.0 q 703
2014-04-30 07:31:47 C 13 53 37.984 +05 37 54.16 L F51
2014-04-30 07:50:48 C 13 53 36.612 +05 37 53.84 L F51
2014-04-30 08:09:44 C 13 53 35.237 +05 37 53.46 L F51
2014-05-24 07:35:37 C 13 25 00.448 +03 53 10.51 L F51
2014-05-24 07:53:18 C 13 24 59.918 +03 53 04.95 L F51
2014-05-24 08:11:00 C 13 24 59.395 +03 52 59.32 L F51
2014-05-24 08:28:39 C 13 24 58.878 +03 52 53.63 L F51
2014-06-29 06:32:04 C 13 27 21.994 -02 06 48.94 L F51
2014-06-29 06:48:02 C 13 27 22.400 -02 06 56.65 L F51
2014-06-29 07:04:02 C 13 27 22.813 -02 07 04.29 L F51
2014-06-29 07:19:59 C 13 27 23.209 -02 07 12.06 L F51
2018-09-06 11:22:49 C 05 31 00.75 +05 15 50.5 V 703
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)