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
2000-04-28 05:38:54 c 13 21 42.53 +25 30 57.2 c 699
2000-04-28 06:08:35 c 13 21 41.14 +25 31 11.3 c 699
2000-04-28 06:38:14 c 13 21 39.88 +25 31 24.9 c 699
2000-05-01 06:05:30 C 13 18 39.41 +26 01 17.6 19.2 c 704
2000-05-01 06:23:22 C 13 18 38.55 +26 01 23.6 19.5 c 704
2000-05-01 06:40:58 C 13 18 37.79 +26 01 29.8 19.6 c 704
2000-05-01 07:00:16 C 13 18 37.01 +26 01 37.5 19.1 c 704
2000-05-01 07:18:02 C 13 18 36.28 +26 01 43.8 19.3 c 704
2003-02-07 10:04:09 C 13 30 21.34 +03 35 18.3 c 673
2003-02-07 10:15:49 C 13 30 21.52 +03 35 23.2 c 673
2003-02-07 10:33:49 C 13 30 21.78 +03 35 31.6 c 673
2003-03-13 07:45:09 C 13 29 11.02 +11 57 58.9 c 673
2003-03-13 07:56:26 C 13 29 10.76 +11 58 07.4 c 673
2003-03-13 08:07:20 C 13 29 10.54 +11 58 14.6 c 673
2003-04-06 06:00:11 C 13 09 24.24 +19 28 48.0 o 699
2003-04-06 06:21:44 C 13 09 23.13 +19 29 03.6 o 699
2003-04-06 06:43:15 C 13 09 22.22 +19 29 19.0 o 699
2003-04-06 07:04:46 C 13 09 21.27 +19 29 34.5 o 699
2003-04-09 07:26:38 C 13 06 09.87 +20 20 18.7 19.3 c 644
2003-04-09 07:59:04 C 13 06 08.38 +20 20 40.5 19.2 c 644
2003-04-09 08:53:42 C 13 06 05.86 +20 21 17.6 19.5 c 644
2003-04-19 21:01:17 C 12 54 54.09 +22 52 59.2 c 240
2003-04-19 21:06:40 C 12 54 53.87 +22 53 01.9 c 240
2003-04-19 21:15:40 C 12 54 53.51 +22 53 06.5 c 240
2003-04-19 21:26:27 C 12 54 53.10 +22 53 12.1 c 240
2006-03-19 23:02:57 C 12 56 39.32 +14 16 14.3 r A13
2006-03-19 23:24:25 C 12 56 38.56 +14 16 30.5 r A13
2006-03-19 23:46:45 C 12 56 37.71 +14 16 47.0 r A13
2006-04-02 06:50:30 C 12 43 33.49 +18 09 52.0 r 703
2006-04-02 07:02:07 C 12 43 33.06 +18 09 59.9 r 703
2006-04-02 07:13:41 C 12 43 32.48 +18 10 08.4 r 703
2006-04-02 07:25:39 C 12 43 31.87 +18 10 16.5 r 703
2009-03-18 08:33:20 C 12 30 53.78 +13 52 38.1 r 703
2009-03-18 08:51:50 C 12 30 53.06 +13 52 51.8 r 703
2009-03-18 09:10:09 C 12 30 52.38 +13 53 04.2 r 703
2009-03-18 09:28:48 C 12 30 51.55 +13 53 18.0 r 703
2009-03-22 06:22:15 C 12 27 03.60 +14 58 55.3 r 703
2009-03-22 06:30:10 C 12 27 03.20 +14 59 01.9 r 703
2009-03-22 06:37:59 C 12 27 02.80 +14 59 07.0 r 703
2009-03-22 06:45:52 C 12 27 02.48 +14 59 11.2 r 703
2012-02-14 14:35:04 C 12 29 55.097 +05 31 23.74 L F51
2012-02-14 14:51:31 C 12 29 54.871 +05 31 32.35 L F51
2012-02-26 12:22:36 C 12 24 15.337 +08 16 07.06 L F51
2012-02-26 12:38:51 C 12 24 14.873 +08 16 17.46 L F51
2012-02-26 12:55:48 C 12 24 14.388 +08 16 27.94 L F51
2012-02-26 13:10:52 C 12 24 13.973 +08 16 37.29 L F51
2012-03-16 13:02:40 C 12 08 18.196 +13 20 20.05 L F51
2012-03-16 13:17:43 C 12 08 17.550 +13 20 30.08 L F51
2012-03-16 13:33:09 C 12 08 16.883 +13 20 40.33 L F51
2012-03-16 13:49:13 C 12 08 16.201 +13 20 51.30 L F51