310560 (2001 QL142)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4990518216 ± 2.96e-08
Semi-major axis (a)1.0494894006 AU ± 1.46e-09
Inclination (i)26.60298000° ± 1.57e-06
Long. of Asc. Node (Ω)165.54209156° ± 4.64e-06
Arg. of Perihelion (ω)72.16172417° ± 5.74e-06
Mean Anomaly (M)274.19213920° ± 9.04e-06
Mean Motion (n)0.9167379098°/day ± 1.92e-09
Perihelion dist (q)0.52573980 AU ± 3.11e-08
Aphelion dist (Q)1.57323900 AU ± 3.11e-08
Orbital Period1.07514511 yr ± 2.25e-09
Physical Parameters
H (abs. magnitude)17.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.071″
Uncertainty0
Orbit TypeApollo
MOID0.049410 AU
Observations Used189
Radar Obs Used1
Gaia Obs Used108
Oppositions3
Arc Total1974-2017
First Observation Used1974-10-14
Last Observation Used2016-12-28
Observations (215)
Date Type RA Dec Mag Band Observatory
2016-09-28 15:21:29 C 03 58 08.94 -25 37 31.5 L T05
2016-10-08 16:00:59 C 03 29 57.10 -33 20 35.2 q Q60
2016-10-08 16:27:32 C 03 29 53.45 -33 21 18.1 q Q60
2016-10-08 16:40:42 C 03 29 51.71 -33 21 38.7 q Q60
2016-10-29 11:23:33 C 02 23 27.63 -40 34 23.1 q Q60
2016-10-29 11:37:28 C 02 23 25.92 -40 34 25.1 q Q60
2016-10-29 11:51:23 C 02 23 24.17 -40 34 29.1 q Q60
2016-12-28 05:13:22 C 01 33 55.929 -27 13 27.69 L F51
2016-12-28 05:29:45 C 01 33 56.347 -27 13 14.39 L F51
2016-12-28 05:46:05 C 01 33 56.778 -27 13 01.33 L F51
2017-09-20 14:39:27 S 20 30 48.71 -74 41 13.3 L C51
2017-09-20 16:13:42 S 20 34 17.77 -74 31 58.2 L C51
2017-09-20 17:47:57 S 20 37 40.17 -74 22 38.2 L C51
2017-09-20 19:22:12 S 20 40 56.11 -74 13 14.4 L C51
2017-09-20 19:22:23 S 20 40 56.62 -74 13 14.5 L C51
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-09-11 21:30:00 536555.318 4 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)