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
2024-04-08 04:42:22 C 09 56 22.880 +33 48 23.90 V V00
2024-04-08 04:50:27 C 09 56 23.212 +33 48 16.96 V V00
2024-04-08 04:58:31 C 09 56 23.550 +33 48 10.01 V V00
2024-04-08 05:06:35 C 09 56 23.892 +33 48 02.95 V V00
2024-04-22 05:09:54 C 10 13 25.633 +29 05 41.64 V G96
2024-04-22 05:16:46 C 10 13 26.015 +29 05 35.16 V G96
2024-04-22 05:23:38 C 10 13 26.353 +29 05 29.65 V G96
2024-04-22 05:30:30 C 10 13 26.699 +29 05 23.89 V G96
2024-05-01 04:41:25 C 10 25 38.366 +26 11 46.39 V G96
2024-05-01 04:49:30 C 10 25 38.838 +26 11 39.59 V G96
2024-05-01 04:57:38 C 10 25 39.277 +26 11 32.93 V G96
2024-05-01 05:05:44 C 10 25 39.749 +26 11 26.84 V G96
2024-05-02 07:34:05 C 10 27 12.854 +25 50 28.65 X F52
2024-05-02 07:49:09 C 10 27 13.702 +25 50 16.76 X F52
2024-05-02 08:04:16 C 10 27 14.549 +25 50 04.48 X F52
2024-05-02 08:19:24 C 10 27 15.401 +25 49 52.38 X F52
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)