3271 Ul (1982 RB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3955389467 ± 5.53e-08
Semi-major axis (a)2.1017795977 AU ± 7.96e-09
Inclination (i)25.06799195° ± 4.46e-06
Long. of Asc. Node (Ω)158.80479021° ± 8.06e-06
Arg. of Perihelion (ω)159.09827000° ± 2.45e-05
Mean Anomaly (M)73.99224757° ± 3.65e-05
Mean Motion (n)0.3234681452°/day ± 1.84e-09
Perihelion dist (q)1.27044391 AU ± 1.16e-07
Aphelion dist (Q)2.93311529 AU ± 1.17e-07
Orbital Period3.04705826 yr ± 1.73e-08
Physical Parameters
H (abs. magnitude)16.55
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.237″
Uncertainty0
Orbit TypeAmor
MOID0.274902 AU
Observations Used305
Oppositions30
Arc Total1982-2026
First Observation Used1982-09-14
Last Observation Used2026-02-09
Observations (319)
Date Type RA Dec Mag Band Observatory
2012-03-21 12:14:14 C 12 03 14.452 +14 39 25.21 L F51
2012-03-21 12:30:26 C 12 03 13.716 +14 39 35.72 L F51
2012-04-01 03:55:39 C 11 52 11.78 +17 15 06.7 r G96
2012-04-01 04:06:16 C 11 52 11.35 +17 15 12.7 r G96
2012-04-01 04:17:02 C 11 52 10.84 +17 15 18.7 r G96
2012-04-01 04:27:52 C 11 52 10.38 +17 15 24.8 r G96
2013-12-11 03:52:39 C 07 21 11.90 -10 40 18.7 u 807
2013-12-11 03:59:23 C 07 21 11.64 -10 40 18.9 u 807
2013-12-11 04:06:44 C 07 21 11.35 -10 40 19.3 u 807
2013-12-26 11:30:41 C 07 04 56.429 -10 19 07.90 L F51
2013-12-26 11:50:10 C 07 04 55.463 -10 19 04.73 L F51
2014-01-26 03:39:50 C 06 31 56.62 -06 02 34.4 u 807
2014-01-26 03:52:21 C 06 31 56.17 -06 02 28.3 u 807
2014-01-26 04:04:55 C 06 31 55.73 -06 02 22.3 u 807
2015-01-19 13:52:18 C 12 12 54.821 +01 41 26.97 L F51
2015-01-19 14:11:47 C 12 12 54.954 +01 41 31.95 L F51
2015-01-19 14:31:16 C 12 12 55.080 +01 41 36.74 L F51
2015-01-19 14:50:43 C 12 12 55.220 +01 41 41.75 L F51
2015-02-18 12:46:45 C 12 07 22.549 +06 33 47.24 L F51
2015-02-18 13:04:42 C 12 07 22.096 +06 33 57.26 L F51
2015-02-18 13:22:39 C 12 07 21.642 +06 34 07.14 L F51
2015-02-18 13:40:39 C 12 07 21.180 +06 34 17.18 L F51
2015-02-19 12:07:09 C 12 06 48.238 +06 46 51.91 L F51
2015-02-19 12:25:02 C 12 06 47.763 +06 47 02.09 L F51
2015-02-19 12:42:59 C 12 06 47.289 +06 47 12.23 L F51
2015-02-19 13:00:56 C 12 06 46.810 +06 47 22.26 L F51
2015-02-27 10:04:48 C 12 01 17.55 +08 39 33.1 q 703
2015-02-27 10:10:36 C 12 01 17.27 +08 39 37.0 q 703
2015-02-27 10:16:22 C 12 01 17.18 +08 39 41.3 q 703
2015-03-15 07:13:16 C 11 46 40.26 +12 43 03.2 R G45
2015-03-15 07:22:23 C 11 46 39.85 +12 43 09.1 R G45
2015-03-15 07:28:45 C 11 46 39.54 +12 43 13.4 R G45
2015-03-15 07:31:25 C 11 46 39.43 +12 43 14.4 R G45
2015-03-15 07:37:43 C 11 46 39.16 +12 43 18.7 R G45
2015-03-24 11:35:51 C 11 37 11.295 +14 58 37.80 L F51
2015-03-24 11:52:24 C 11 37 10.566 +14 58 47.45 L F51
2015-03-24 12:08:54 C 11 37 09.836 +14 58 57.09 L F51
2015-03-24 12:25:24 C 11 37 09.108 +14 59 06.72 L F51
2015-03-25 07:41:19 C 11 36 19.79 +15 10 18.2 R G45
2015-03-25 07:51:13 C 11 36 19.39 +15 10 23.9 R G45
2015-03-25 08:02:29 C 11 36 18.85 +15 10 30.0 R G45
2015-03-25 08:12:40 C 11 36 18.39 +15 10 36.4 R G45
2015-03-25 11:56:11 C 11 36 08.840 +15 12 46.79 L F51
2015-03-25 12:12:41 C 11 36 08.113 +15 12 56.25 L F51
2015-03-25 12:29:10 C 11 36 07.392 +15 13 05.64 L F51
2015-03-25 12:45:41 C 11 36 06.669 +15 13 15.18 L F51
2015-03-28 07:18:42 C 11 33 18.536 +15 50 50.33 L F51
2015-03-28 07:36:52 C 11 33 17.755 +15 51 00.27 L F51
2015-03-28 07:55:15 C 11 33 16.952 +15 51 10.57 L F51
2015-03-28 08:13:38 C 11 33 16.159 +15 51 20.70 L F51