IAA RAS IAA Minor Planet Database

2016 UR31

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3043369980 ± 9.60e-07
Semi-major axis (a)1.2164164179 AU ± 8.45e-09
Inclination (i)1.80567139° ± 9.43e-06
Long. of Asc. Node (Ω)229.87035878° ± 1.37e-04
Arg. of Perihelion (ω)78.41695281° ± 2.92e-04
Mean Anomaly (M)329.91934051° ± 3.46e-05
Mean Motion (n)0.7346641816°/day ± 7.66e-09
Perihelion dist (q)0.84621590 AU ± 1.17e-06
Aphelion dist (Q)1.58661694 AU ± 1.17e-06
Orbital Period1.34160111 yr ± 1.40e-08
Physical Parameters
H (abs. magnitude)24.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.327″
Uncertainty0
Orbit TypeApollo
MOID0.003176 AU
Observations Used49
Oppositions1
Arc Total2016-2020
First Observation Used2016-10-23
Last Observation Used2020-11-05
Observations (50)
Date Type RA Dec Mag Band Observatory
2016-10-23 10:52:01 C 04 14 06.95 +27 00 36.3 – q G96
2016-10-23 10:58:31 C 04 14 04.96 +27 00 23.3 – q G96
2016-10-23 11:06:49 C 04 14 02.48 +27 00 07.9 – q G96
2016-10-23 11:15:14 C 04 13 59.94 +26 59 51.7 – q G96
2016-10-25 09:54:29 C 04 01 43.17 +25 36 24.6 – q G96
2016-10-25 09:58:08 C 04 01 42.18 +25 36 18.0 – q G96
2016-10-25 10:03:29 C 04 01 40.75 +25 36 08.6 – q G96
2016-10-25 10:05:29 C 04 01 40.15 +25 36 04.9 – q G96
2016-10-26 07:22:32 C 03 56 35.74 +24 59 46.8 – t 705
2016-10-26 07:24:04 C 03 56 35.38 +24 59 44.6 – t 705
2016-10-26 07:25:33 C 03 56 34.94 +24 59 41.6 – t 705
2016-10-26 07:31:04 C 03 56 33.96 +24 59 32.6 – q I52
2016-10-26 07:35:09 C 03 56 32.94 +24 59 25.6 – q I52
2016-10-26 07:39:36 C 03 56 31.76 +24 59 18.3 – q I52
2016-11-03 08:05:35 C 03 20 55.06 +20 24 06.1 – o 926
2016-11-03 08:17:57 C 03 20 53.03 +20 23 50.6 – o 926
2016-11-05 05:59:34 C 03 14 42.71 +19 31 44.1 – q G96
2016-11-05 06:05:43 C 03 14 41.79 +19 31 39.3 – q G96
2016-11-05 06:11:52 C 03 14 40.97 +19 31 33.3 – q G96
2016-11-05 06:20:32 C 03 14 39.76 +19 31 23.8 – q G96
2016-11-07 11:50:17 C 03 08 11.49 +18 36 14.2 – o 291
2016-11-07 11:53:38 C 03 08 11.18 +18 36 11.2 – o 291
2020-10-16 05:20:01 C 20 35 26.770 +02 32 29.07 – V F52
2020-10-17 02:37:26 C 21 00 27.22 +03 11 10.1 – V G96
2020-10-17 02:45:34 C 21 00 36.14 +03 11 24.4 – V G96
2020-10-17 02:53:43 C 21 00 45.00 +03 11 39.0 – V G96
2020-10-17 04:34:43 C 21 02 35.17 +03 14 32.3 – V I52
2020-10-17 04:35:26 C 21 02 35.95 +03 14 33.3 – V I52
2020-10-17 04:36:08 C 21 02 36.73 +03 14 34.6 – V I52
2020-10-17 04:36:51 C 21 02 37.50 +03 14 35.8 – V I52
2020-10-17 05:33:56 C 21 03 39.84 +03 16 12.5 – V I52
2020-10-17 05:35:00 C 21 03 41.03 +03 16 14.5 – V I52
2020-10-17 05:36:04 C 21 03 42.21 +03 16 15.8 – V I52
2020-10-17 05:37:08 C 21 03 43.34 +03 16 17.8 – V I52
2020-10-17 19:04:20 C 21 18 41.99 +03 38 10.6 – V Z84
2020-10-17 19:13:03 C 21 18 50.99 +03 38 24.4 – V Z84
2020-10-17 19:21:47 C 21 19 00.00 +03 38 37.9 – V Z84
2020-10-17 20:47:13 C 21 20 27.84 +03 40 32.0 – V I93
2020-10-17 21:05:44 C 21 20 46.90 +03 41 00.6 – V I93
2020-10-17 21:18:12 C 21 20 58.04 +03 41 16.1 – V L01
2020-10-17 21:20:15 C 21 21 00.19 +03 41 19.6 – V L01
2020-10-17 21:22:18 C 21 21 02.32 +03 41 23.0 – V L01
2020-10-18 01:52:17 C 21 25 56.25 +03 48 48.4 – V I52
2020-10-18 01:53:10 C 21 25 57.15 +03 48 50.1 – V I52
2020-10-18 01:54:02 C 21 25 58.04 +03 48 50.5 – V I52
2020-10-30 05:44:24 C 00 08 00.07 +06 35 09.3 – o 291
2020-10-30 05:53:04 C 00 08 02.12 +06 35 10.9 – o 291
2020-11-05 03:30:21 C 00 36 32.00 +06 55 32.8 – o 691
2020-11-05 03:41:56 C 00 36 33.64 +06 55 34.7 – o 691
2020-11-05 03:53:33 C 00 36 35.28 +06 55 35.9 – o 691