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
2024-02-20 06:03:54 B 09 43 11.87 +50 26 49.7 X W42
2024-02-20 06:12:19 B 09 43 11.41 +50 26 43.5 X W42
2024-02-20 06:20:29 B 09 43 10.98 +50 26 37.5 X W42
2024-02-21 15:35:43 B 09 41 54.33 +50 02 13.7 Z O53
2024-02-21 15:46:11 B 09 41 53.90 +50 02 06.2 Z O53
2024-02-21 15:56:30 B 09 41 53.37 +50 01 58.5 Z O53
2024-02-21 19:46:54 C 09 41 44.82 +49 58 53.6 V C40
2024-02-21 20:01:01 C 09 41 44.18 +49 58 43.4 V C40
2024-02-21 20:15:10 C 09 41 43.60 +49 58 33.1 V C40
2024-02-24 21:48:18 C 09 39 20.04 +49 01 40.7 V C40
2024-02-24 22:00:39 C 09 39 19.58 +49 01 30.4 V C40
2024-02-24 22:10:54 C 09 39 19.26 +49 01 22.4 V C40
2024-02-26 22:06:49 C 09 38 06.57 +48 22 44.3 V C40
2024-02-26 22:21:07 C 09 38 06.18 +48 22 32.2 V C40
2024-02-26 22:35:05 C 09 38 05.77 +48 22 20.6 V C40
2024-03-03 07:09:49 C 09 36 05.897 +46 34 09.12 V G96
2024-03-03 07:17:25 C 09 36 05.778 +46 34 02.42 V G96
2024-03-03 07:25:00 C 09 36 05.648 +46 33 55.73 V G96
2024-03-03 07:32:36 C 09 36 05.522 +46 33 49.03 V G96
2024-03-11 05:16:40 C 09 36 08.010 +43 46 10.31 V G96
2024-03-11 05:25:06 C 09 36 08.024 +43 46 02.86 V G96
2024-03-11 05:33:21 C 09 36 08.039 +43 45 55.33 V G96
2024-03-11 05:41:39 C 09 36 08.053 +43 45 48.17 V G96
2024-03-14 09:19:54 C 09 37 01.517 +42 37 40.44 V T05
2024-03-14 09:25:30 C 09 37 01.548 +42 37 35.36 V T05
2024-03-14 09:33:01 C 09 37 01.656 +42 37 28.78 V T05
2024-03-14 09:49:23 C 09 37 01.790 +42 37 13.98 V T05
2024-03-15 08:41:59 C 09 37 23.839 +42 16 33.56 V T08
2024-03-15 08:49:18 C 09 37 23.976 +42 16 27.26 V T08
2024-03-15 08:53:58 C 09 37 24.012 +42 16 22.58 V T08
2024-03-15 09:09:06 C 09 37 24.130 +42 16 09.19 V T08
2024-03-17 07:13:12 C 09 38 15.655 +41 34 28.06 V T05
2024-03-17 08:04:03 C 09 38 16.397 +41 33 41.87 V T05
2024-03-17 08:10:44 C 09 38 16.536 +41 33 36.04 V T05
2024-03-17 08:42:24 C 09 38 16.949 +41 33 07.24 V T05
2024-03-17 08:44:22 C 09 38 16.985 +41 33 05.04 V T05
2024-03-17 08:51:13 C 09 38 17.042 +41 32 59.06 V T05
2024-03-17 08:58:43 C 09 38 17.186 +41 32 52.40 V T05
2024-03-23 09:04:59 C 09 41 52.209 +39 22 48.24 X F52
2024-03-23 09:18:24 C 09 41 52.531 +39 22 35.87 X F52
2024-03-23 09:31:44 C 09 41 52.852 +39 22 23.61 X F52
2024-03-23 09:45:10 C 09 41 53.177 +39 22 11.33 X F52
2024-03-27 07:35:27 C 09 44 52.919 +37 58 13.00 X F51
2024-03-27 07:52:25 C 09 44 53.403 +37 57 57.87 X F51
2024-03-27 08:09:11 C 09 44 53.892 +37 57 42.89 X F51
2024-03-27 08:26:34 C 09 44 54.405 +37 57 27.34 X F51
2024-03-29 09:31:08 C 09 46 38.370 +37 13 50.42 X F51
2024-03-29 09:47:09 C 09 46 38.893 +37 13 35.78 X F51
2024-03-29 10:03:07 C 09 46 39.407 +37 13 21.39 X F51
2024-03-29 10:19:06 C 09 46 39.934 +37 13 06.93 X F51
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)