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
2023-07-26 06:34:17 C 23 28 56.285 -26 55 12.43 V W68
2023-07-26 06:41:43 C 23 28 56.671 -26 55 18.70 V W68
2023-07-26 06:48:56 C 23 28 57.019 -26 55 25.64 V W68
2023-07-29 05:53:17 C 23 33 07.817 -28 00 47.88 V W68
2023-07-29 05:55:54 C 23 33 07.951 -28 00 49.75 V W68
2023-07-29 06:01:05 C 23 33 08.160 -28 00 55.55 V W68
2023-07-29 06:08:56 C 23 33 08.630 -28 01 02.71 V W68
2023-08-07 06:12:42 C 23 45 07.416 -31 53 33.58 V W68
2023-08-07 06:16:47 C 23 45 07.601 -31 53 38.62 V W68
2023-08-07 06:25:24 C 23 45 08.018 -31 53 49.31 V W68
2023-08-14 05:30:21 C 23 53 29.503 -35 28 12.54 V W68
2023-08-14 05:32:59 C 23 53 29.630 -35 28 16.61 V W68
2023-08-14 06:03:54 C 23 53 30.862 -35 28 59.09 V W68
2023-08-14 06:07:50 C 23 53 31.003 -35 29 04.42 V W68
2023-08-20 10:38:25 C 00 00 08.232 -39 02 05.98 X F52
2023-08-20 10:51:22 C 00 00 08.669 -39 02 25.71 X F52
2023-08-20 11:04:25 C 00 00 09.104 -39 02 45.54 X F52
2023-08-20 12:02:04 C 00 00 10.999 -39 04 12.53 X F51
2023-08-20 12:15:22 C 00 00 11.431 -39 04 32.48 X F51
2023-08-20 12:28:39 C 00 00 11.862 -39 04 52.31 X F51
2023-08-20 12:41:59 C 00 00 12.295 -39 05 12.24 X F51
2023-08-20 23:31:46 C 00 00 39.950 -39 21 03.78 V M22
2023-08-20 23:36:33 C 00 00 40.114 -39 21 10.91 V M22
2023-08-20 23:41:33 C 00 00 40.267 -39 21 18.68 V M22
2023-08-21 00:33:28 C 00 00 41.966 -39 22 36.80 V M22
2023-08-23 07:44:13 C 00 02 54.492 -40 46 20.82 V W68
2023-08-23 07:49:24 C 00 02 54.631 -40 46 28.45 V W68
2023-08-23 08:07:19 C 00 02 55.186 -40 46 55.52 V W68
2023-08-23 08:30:31 C 00 02 55.915 -40 47 30.41 V W68
2023-08-23 22:54:34 C 00 03 31.318 -41 09 38.48 V M22
2023-08-23 22:57:52 C 00 03 31.404 -41 09 43.67 V M22
2023-08-23 23:35:55 C 00 03 32.561 -41 10 43.32 V M22
2023-08-24 00:10:04 C 00 03 33.576 -41 11 36.24 V M22
2023-08-27 00:34:20 C 00 06 14.842 -43 04 26.26 V M22
2023-08-27 00:42:52 C 00 06 15.065 -43 04 39.47 V M22
2023-08-27 01:26:08 C 00 06 16.212 -43 05 46.86 V M22
2023-08-27 02:02:10 C 00 06 17.162 -43 06 42.80 V M22
2023-08-27 22:36:36 C 00 07 02.762 -43 39 08.71 V M22
2023-08-27 22:41:21 C 00 07 02.882 -43 39 16.24 V M22
2023-08-27 23:15:23 C 00 07 03.744 -43 40 10.88 V M22
2023-09-04 05:06:14 C 00 12 33.185 -48 17 12.98 V W68
2023-09-04 05:09:32 C 00 12 33.204 -48 17 18.24 V W68
2023-09-04 05:46:44 C 00 12 33.845 -48 18 18.11 V W68
2023-09-04 05:52:39 C 00 12 33.979 -48 18 27.18 V W68
2023-09-12 03:02:46 C 00 17 05.465 -53 14 25.37 V M22
2023-09-12 03:06:56 C 00 17 05.527 -53 14 31.52 V M22
2023-09-12 03:22:16 C 00 17 05.712 -53 14 53.52 V M22
2023-09-12 03:33:28 C 00 17 05.868 -53 15 09.43 V M22
2023-09-14 22:19:04 C 00 18 27.374 -54 55 15.17 V M22
2023-09-14 22:23:06 C 00 18 27.384 -54 55 21.22 V M22
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)