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
2018-09-06 11:31:03 C 05 31 02.41 +05 15 55.2 V 703
2018-09-06 11:35:10 C 05 31 03.29 +05 15 59.0 V 703
2018-09-11 11:23:34 C 05 56 06.36 +06 10 56.6 G96
2018-09-11 11:38:50 C 05 56 09.53 +06 11 03.4 G96
2018-09-11 11:50:07 C 05 56 11.85 +06 11 08.6 G96
2018-09-11 12:00:11 C 05 56 13.92 +06 11 13.0 G96
2018-11-14 14:49:42 C 10 43 23.166 +09 34 26.60 U F52
2018-11-14 15:04:16 C 10 43 25.320 +09 34 24.70 U F52
2018-11-14 15:18:57 C 10 43 27.489 +09 34 22.75 U F52
2018-12-13 12:05:24 C 12 15 22.44 +07 52 20.7 U I41
2018-12-13 12:06:03 C 12 15 22.51 +07 52 21.0 U I41
2018-12-13 12:29:25 C 12 15 25.13 +07 52 18.3 U I41
2018-12-13 13:03:26 C 12 15 28.88 +07 52 14.4 U I41
2018-12-13 13:04:46 C 12 15 29.05 +07 52 14.2 U I41
2019-01-19 12:13:45 C 13 33 25.07 +08 21 31.8 V G96
2019-01-19 12:21:10 C 13 33 25.47 +08 21 33.4 V G96
2019-01-19 12:28:36 C 13 33 25.89 +08 21 35.0 V G96
2019-01-19 12:36:00 C 13 33 26.27 +08 21 36.8 V G96
2019-01-28 10:54:55 C 13 43 55.16 +09 21 44.1 V 703
2019-01-28 11:10:14 C 13 43 55.69 +09 21 49.3 V 703
2019-01-28 11:17:54 C 13 43 56.03 +09 21 53.5 V 703
2019-02-08 09:53:53 C 13 50 56.86 +11 08 42.1 V 703
2019-02-08 10:01:34 C 13 50 56.94 +11 08 45.3 V 703
2019-02-08 10:09:16 C 13 50 57.02 +11 08 48.6 V 703
2019-02-08 10:16:58 C 13 50 57.08 +11 08 53.3 V 703
2019-02-08 12:27:08 C 13 50 59.003 +11 09 57.14 U F51
2019-02-08 12:44:45 C 13 50 59.173 +11 10 05.68 U F51
2019-02-08 13:02:21 C 13 50 59.340 +11 10 14.18 U F51
2019-02-08 13:20:02 C 13 50 59.502 +11 10 22.67 U F51
2019-02-11 10:52:39 C 13 51 36.80 +11 44 27.8 V G96
2019-02-11 11:00:03 C 13 51 36.83 +11 44 31.6 V G96
2019-02-11 11:07:28 C 13 51 36.82 +11 44 35.5 V G96
2019-02-11 11:14:53 C 13 51 36.85 +11 44 39.2 V G96
2019-02-16 01:05:49 C 13 51 29.94 +12 42 38.8 q C95
2019-02-16 01:16:41 C 13 51 29.83 +12 42 44.9 q C95
2019-02-16 01:27:52 C 13 51 29.70 +12 42 50.8 q C95
2019-02-16 01:38:55 C 13 51 29.47 +12 42 55.0 q C95
2019-03-01 10:04:21 C 13 43 04.69 +15 50 07.3 V 703
2019-03-01 10:11:52 C 13 43 04.30 +15 50 11.4 V 703
2019-03-01 10:19:24 C 13 43 03.90 +15 50 16.5 V 703
2019-03-01 10:43:52 C 13 43 02.77 +15 50 29.8 V 703
2019-03-03 20:06:38 C 13 40 16.01 +16 24 26.7 q D29
2019-03-03 20:30:48 C 13 40 14.67 +16 24 40.7 q D29
2019-03-03 20:54:59 C 13 40 13.29 +16 24 54.4 q D29
2019-03-05 10:02:55 C 13 38 14.23 +16 46 31.3 V 703
2019-03-05 10:10:28 C 13 38 13.68 +16 46 35.1 V 703
2019-03-05 10:18:01 C 13 38 13.29 +16 46 39.0 V 703
2019-03-05 10:25:33 C 13 38 12.84 +16 46 44.2 V 703
2019-03-06 19:13:16 C 13 36 19.95 +17 05 27.1 q D29
2019-03-06 19:33:37 C 13 36 18.66 +17 05 38.1 q D29
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)