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
2019-04-06 10:53:29 C 12 39 46.99 +20 31 57.0 V T05
2019-04-06 11:03:14 C 12 39 46.17 +20 31 55.8 V T05
2019-04-06 11:06:33 C 12 39 46.00 +20 31 54.8 V T05
2019-04-06 11:16:21 C 12 39 45.20 +20 31 54.9 V T05
2019-04-06 11:18:36 C 12 39 45.03 +20 31 53.7 V T05
2019-04-06 11:34:51 C 12 39 43.80 +20 31 52.3 V T05
2019-04-07 05:50:11 C 12 38 25.12 +20 30 06.6 U I41
2019-04-07 06:09:04 C 12 38 23.72 +20 30 04.7 U I41
2019-04-07 06:40:45 C 12 38 21.33 +20 30 01.6 U I41
2019-04-07 06:42:04 C 12 38 21.23 +20 30 01.5 U I41
2019-04-07 08:19:45 C 12 38 13.88 +20 29 51.2 U I41
2019-04-08 07:37:57 C 12 36 34.99 +20 27 08.4 V 703
2019-04-08 07:45:30 C 12 36 34.41 +20 27 07.3 V 703
2019-04-08 07:53:03 C 12 36 33.83 +20 27 07.2 V 703
2019-04-08 08:00:36 C 12 36 33.28 +20 27 05.3 V 703
2019-04-08 10:23:39 C 12 36 23.32 +20 26 51.5 V T08
2019-04-08 10:46:18 C 12 36 21.75 +20 26 46.6 V T08
2019-04-08 11:00:15 C 12 36 20.68 +20 26 45.3 V T08
2019-04-08 11:15:32 C 12 36 19.67 +20 26 42.9 V T08
2019-04-13 05:54:48 C 12 28 51.59 +20 05 35.9 V 703
2019-04-13 06:17:54 C 12 28 50.14 +20 05 30.8 V 703
2019-04-14 03:29:10 C 12 27 35.00 +20 00 22.1 V G96
2019-04-14 03:38:48 C 12 27 34.44 +20 00 19.6 V G96
2019-04-14 03:46:18 C 12 27 34.00 +20 00 17.6 V G96
2019-04-14 03:53:47 C 12 27 33.52 +20 00 15.7 V G96
2019-04-27 05:51:29 C 12 13 38.42 +18 08 27.7 V G96
2019-04-27 05:58:56 C 12 13 38.16 +18 08 24.9 V G96
2019-04-27 06:06:22 C 12 13 37.95 +18 08 21.3 V G96
2019-04-27 06:13:50 C 12 13 37.69 +18 08 17.5 V G96
2019-05-06 06:06:52 C 12 09 11.212 +16 23 55.40 U F51
2019-05-06 06:22:55 C 12 09 10.988 +16 23 47.05 U F51
2019-05-06 06:38:56 C 12 09 10.762 +16 23 38.80 U F51
2019-05-06 06:54:57 C 12 09 10.542 +16 23 30.54 U F51
2019-05-27 08:01:16 C 12 12 13.916 +11 38 52.31 U F51
2019-05-27 08:18:18 C 12 12 14.237 +11 38 42.24 U F51
2019-05-27 08:35:18 C 12 12 14.568 +11 38 32.13 U F51
2019-05-27 08:52:22 C 12 12 14.893 +11 38 21.95 U F51
2019-06-01 04:50:22 C 12 15 00.84 +10 29 26.9 V G96
2019-06-01 04:58:32 C 12 15 01.03 +10 29 22.6 V G96
2019-06-01 05:06:42 C 12 15 01.29 +10 29 17.8 V G96
2019-06-01 05:14:52 C 12 15 01.48 +10 29 12.1 V G96
2019-06-01 07:28:01 C 12 15 05.047 +10 27 54.46 U F52
2019-06-01 07:44:43 C 12 15 05.480 +10 27 44.68 U F52
2019-06-01 08:01:25 C 12 15 05.891 +10 27 34.62 U F52
2021-02-16 15:11:50 C 16 30 31.794 -14 16 10.38 U F51
2021-02-16 15:19:16 C 16 30 32.290 -14 16 11.30 U F51
2021-02-16 15:26:42 C 16 30 32.762 -14 16 11.95 U F51
2021-05-12 09:06:12 C 16 59 10.01 -15 48 18.0 V G96
2021-05-12 09:11:36 C 16 59 09.73 -15 48 18.7 V G96
2021-05-12 09:17:02 C 16 59 09.36 -15 48 19.0 V G96
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)