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
1974-10-14 11:33:12 23 18 47.25 -49 17 32.5 c 260
1974-10-14 12:13:13 23 18 48.34 -49 16 49.4 c 260
2001-08-24 10:07:33 C 04 32 19.95 +04 47 14.6 c 699
2001-08-24 10:34:47 C 04 32 20.94 +04 46 35.4 c 699
2001-08-24 11:02:05 C 04 32 22.02 +04 45 53.7 c 699
2001-08-24 11:29:19 C 04 32 22.93 +04 45 14.5 c 699
2001-08-24 18:54:12 C 04 32 40.46 +04 34 33.6 m 422
2001-08-24 18:56:11 C 04 32 40.55 +04 34 31.3 m 422
2001-08-24 18:57:16 C 04 32 40.48 +04 34 28.0 m 422
2001-08-25 02:20:29 C 04 32 58.15 +04 23 20.5 d 557
2001-08-25 02:35:44 C 04 32 58.75 +04 22 57.5 d 557
2001-08-26 02:48:09 C 04 33 54.49 +03 47 07.8 c 046
2001-08-26 02:50:09 C 04 33 54.58 +03 47 04.3 c 046
2001-08-26 02:51:53 C 04 33 54.61 +03 47 01.5 c 046
2001-08-27 11:49:11 C 04 35 07.32 +02 57 48.9 c 658
2001-08-27 11:55:12 C 04 35 07.57 +02 57 39.3 c 658
2001-08-27 12:01:55 C 04 35 07.82 +02 57 29.9 c 658
2001-08-28 10:35:02 C 04 35 55.54 +02 23 34.4 d 699
2001-08-28 10:48:39 C 04 35 56.01 +02 23 13.2 d 699
2001-08-28 11:02:17 C 04 35 56.44 +02 22 53.4 d 699
2001-08-28 11:15:57 C 04 35 56.88 +02 22 31.4 d 699
2001-09-13 09:26:02 C 04 43 57.73 -07 49 58.1 c 649
2001-09-13 09:30:30 C 04 43 57.76 -07 50 05.5 c 649
2001-09-13 09:47:51 C 04 43 57.79 -07 50 35.3 c 649
2001-09-23 07:08:37 C 04 42 25.36 -14 41 25.8 d 829
2001-09-23 07:46:05 C 04 42 24.52 -14 42 31.8 d 829
2001-09-23 07:59:29 C 04 42 24.17 -14 42 55.4 d 829
2001-09-23 08:09:17 C 04 42 23.99 -14 43 12.8 d 829
2001-09-23 08:21:18 C 04 42 23.73 -14 43 34.3 d 829
2001-10-01 09:42:14 C 04 36 26.87 -20 23 01.8 c 649
2001-10-01 09:47:04 C 04 36 26.66 -20 23 10.4 c 649
2001-10-01 09:53:47 C 04 36 26.33 -20 23 21.9 c 649
2001-11-03 17:18:51 C 03 25 34.89 -37 22 14.6 e 413
2001-11-03 17:21:28 C 03 25 34.54 -37 22 16.0 e 413
2001-11-03 17:24:06 C 03 25 34.25 -37 22 17.0 e 413
2002-08-27 11:54:12 C 05 25 08.28 +17 19 28.8 c 848
2002-08-27 11:55:48 C 05 25 08.01 +17 19 23.8 c 848
2002-08-27 11:57:23 C 05 25 07.85 +17 19 16.0 c 848
2002-08-27 11:59:01 C 05 25 07.49 +17 19 07.2 c 848
2002-09-09 10:46:29 C 04 38 14.26 -06 06 59.1 c 670
2002-09-09 12:10:36 C 04 38 00.77 -06 13 16.4 c 670
2002-10-05 13:33:15 C 02 49 25.62 -38 34 58.0 c 474
2002-10-05 13:35:55 C 02 49 25.13 -38 35 02.1 c 474
2002-10-05 13:38:16 C 02 49 24.69 -38 35 05.6 c 474
2002-10-14 15:05:59 C 02 12 10.65 -42 12 34.4 m 428
2003-09-30 10:21:17 C 18 22 28.07 -41 05 26.7 r E14
2003-09-30 10:26:09 C 18 22 30.91 -41 05 41.6 r E14
2003-09-30 10:28:51 C 18 22 32.62 -41 05 48.4 r E14
2010-10-30 12:25:57 C 09 39 08.39 -12 16 43.5 o 291
2010-10-30 12:34:55 C 09 39 09.59 -12 16 49.8 o 291
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)