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
2023-09-14 22:27:41 C 00 18 27.394 -54 55 28.20 V M22
2023-09-14 22:35:34 C 00 18 27.420 -54 55 39.83 V M22
2023-09-16 06:00:24 C 00 18 59.998 -55 41 30.59 V W68
2023-09-16 06:05:43 C 00 19 00.002 -55 41 38.00 V W68
2023-09-16 06:14:25 C 00 19 00.012 -55 41 50.78 V W68
2023-09-16 07:03:32 C 00 19 00.125 -55 42 59.83 V W68
2023-09-17 23:41:07 C 00 19 42.910 -56 40 59.23 V M22
2023-09-17 23:45:49 C 00 19 42.907 -56 41 05.64 V M22
2023-09-18 00:34:57 C 00 19 42.926 -56 42 13.46 V M22
2023-09-18 00:42:35 C 00 19 42.931 -56 42 24.05 V M22
2023-09-20 23:29:27 C 00 20 52.850 -58 19 41.20 V M22
2023-09-20 23:34:02 C 00 20 52.838 -58 19 47.35 V M22
2023-09-21 00:24:38 C 00 20 52.766 -58 20 53.48 V M22
2023-09-21 00:36:36 C 00 20 52.769 -58 21 08.93 V M22
2023-09-28 04:59:40 C 00 23 45.679 -61 56 48.91 V W68
2023-09-28 05:44:50 C 00 23 45.593 -61 57 40.75 V W68
2023-09-28 05:54:00 C 00 23 45.514 -61 57 50.94 V W68
2023-10-02 22:46:23 C 00 26 04.846 -64 02 53.66 V M22
2023-10-02 22:52:21 C 00 26 04.836 -64 03 00.07 V M22
2023-10-02 23:42:24 C 00 26 04.836 -64 03 50.87 V M22
2023-10-02 23:51:40 C 00 26 04.831 -64 04 00.01 V M22
2023-10-04 04:03:49 C 00 26 47.942 -64 33 23.76 V W68
2023-10-04 04:09:04 C 00 26 47.892 -64 33 29.09 V W68
2023-10-04 04:58:40 C 00 26 47.851 -64 34 19.56 V W68
2023-10-04 06:00:29 C 00 26 47.856 -64 35 20.51 V W68
2023-10-04 06:05:03 C 00 26 47.873 -64 35 24.83 V W68
2023-10-04 06:12:57 C 00 26 47.882 -64 35 32.53 V W68
2023-10-10 04:02:42 C 00 31 09.468 -66 52 13.22 V W68
2023-10-10 04:03:21 C 00 31 09.396 -66 52 14.16 V W68
2023-10-10 04:50:15 C 00 31 09.799 -66 52 55.42 V W68
2023-10-17 19:06:30 S 00 40 25.70 -69 25 47.4 L C51
2023-10-17 21:04:14 C 00 40 33.463 -69 27 56.05 V M22
2023-10-17 21:06:50 C 00 40 33.569 -69 27 58.18 V M22
2023-10-17 21:12:07 C 00 40 33.730 -69 28 02.42 V M22
2023-10-17 21:20:08 C 00 40 33.979 -69 28 08.83 V M22
2023-10-17 21:44:39 C 00 40 34.764 -69 28 28.24 V M22
2023-10-17 21:49:14 C 00 40 34.918 -69 28 31.73 V M22
2023-10-17 21:58:31 C 00 40 35.206 -69 28 39.11 V M22
2023-10-17 22:12:49 S 00 40 38.23 -69 28 14.3 L C51
2023-10-17 22:49:21 C 00 40 36.864 -69 29 17.16 V M22
2023-10-17 23:45:58 S 00 40 44.59 -69 29 27.8 L C51
2023-10-18 01:19:06 S 00 40 50.94 -69 30 41.2 L C51
2023-10-18 02:52:16 S 00 40 57.31 -69 31 54.9 L C51
2023-10-18 04:25:25 S 00 41 03.77 -69 33 07.9 L C51
2023-10-18 05:58:34 S 00 41 10.19 -69 34 20.4 L C51
2023-10-18 07:31:43 S 00 41 16.72 -69 35 33.8 L C51
2023-10-18 09:04:52 S 00 41 23.30 -69 36 47.0 L C51
2023-10-18 10:38:01 S 00 41 29.82 -69 37 59.7 L C51
2023-10-18 12:11:10 S 00 41 36.40 -69 39 13.7 L C51
2023-10-18 13:44:19 S 00 41 43.04 -69 40 25.6 L C51
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)