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
2021-05-12 09:22:26 C 16 59 09.02 -15 48 19.4 V G96
2021-05-12 11:57:43 C 16 58 59.651 -15 48 28.65 U F51
2021-05-12 12:14:59 C 16 58 58.540 -15 48 29.76 U F51
2021-05-12 12:49:31 C 16 58 56.355 -15 48 32.01 U F51
2021-05-19 12:47:28 C 16 47 44.434 -16 01 02.93 U F51
2021-05-19 13:04:35 C 16 47 43.166 -16 01 04.13 U F51
2021-05-19 13:38:49 C 16 47 40.620 -16 01 06.61 U F51
2021-05-22 10:04:20 C 16 42 39.06 -16 06 48.3 V G96
2021-05-22 10:13:47 C 16 42 38.33 -16 06 48.3 V G96
2021-05-22 10:23:13 C 16 42 37.62 -16 06 49.2 V G96
2021-05-22 10:32:40 C 16 42 36.89 -16 06 49.2 V G96
2021-06-02 10:02:06 C 16 21 58.011 -16 31 00.79 U F51
2021-06-02 10:19:24 C 16 21 56.588 -16 31 02.51 U F51
2021-06-02 10:36:39 C 16 21 55.165 -16 31 04.20 U F51
2021-06-02 10:53:58 C 16 21 53.739 -16 31 05.72 U F51
2021-06-09 09:13:58 C 16 08 56.051 -16 48 18.22 U F51
2021-06-09 09:23:17 C 16 08 55.326 -16 48 19.26 U F51
2021-06-09 09:32:37 C 16 08 54.593 -16 48 20.21 U F51
2021-06-12 07:09:10 C 16 03 46.04 -16 56 07.3 V G96
2021-06-12 07:16:32 C 16 03 45.47 -16 56 08.5 V G96
2021-06-12 07:23:57 C 16 03 44.94 -16 56 09.0 V G96
2021-06-12 07:31:23 C 16 03 44.38 -16 56 09.7 V G96
2021-06-14 06:37:46 C 16 00 24.793 -17 01 36.70 U F51
2021-06-14 06:53:56 C 16 00 23.634 -17 01 38.75 U F51
2021-06-14 07:10:06 C 16 00 22.464 -17 01 40.78 U F51
2021-06-14 07:26:14 C 16 00 21.304 -17 01 42.74 U F51
2021-06-30 07:23:55 C 15 39 04.918 -17 55 25.26 U F51
2021-06-30 07:40:17 C 15 39 04.232 -17 55 27.96 U F51
2021-06-30 07:56:39 C 15 39 03.538 -17 55 30.65 U F51
2021-06-30 08:13:01 C 15 39 02.845 -17 55 33.37 U F51
2021-07-09 07:24:26 C 15 32 33.622 -18 34 12.51 U F51
2021-07-09 07:40:19 C 15 32 33.235 -18 34 15.39 U F51
2021-07-09 08:12:04 C 15 32 32.515 -18 34 21.63 U F51
2023-06-13 10:09:22 C 22 19 30.335 -19 19 55.70 V G96
2023-06-13 10:16:58 C 22 19 30.864 -19 19 56.78 V G96
2023-06-13 10:24:35 C 22 19 31.422 -19 19 57.79 V G96
2023-06-13 10:32:12 C 22 19 31.940 -19 19 58.04 V G96
2023-07-14 06:15:27 C 23 10 59.472 -23 23 00.28 V W68
2023-07-14 06:18:42 C 23 10 59.666 -23 23 02.11 V W68
2023-07-14 06:24:35 C 23 11 00.029 -23 23 06.07 V W68
2023-07-14 06:42:35 C 23 11 01.188 -23 23 16.94 V W68
2023-07-22 00:43:37 C 23 22 46.596 -25 30 47.12 V M22
2023-07-22 00:46:13 C 23 22 46.675 -25 30 48.85 V M22
2023-07-22 00:50:21 C 23 22 47.016 -25 30 51.77 V M22
2023-07-22 00:57:50 C 23 22 47.297 -25 30 57.31 V M22
2023-07-25 12:47:00 C 23 27 52.469 -26 39 55.74 X F51
2023-07-25 13:00:53 C 23 27 53.226 -26 40 07.85 X F51
2023-07-25 13:14:46 C 23 27 53.982 -26 40 19.93 X F51
2023-07-25 13:40:52 C 23 27 55.399 -26 40 42.52 X F51
2023-07-26 06:30:13 C 23 28 56.045 -26 55 09.01 V W68
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)