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
1982-09-14 03:26:47 A 23 06 48.40 -23 38 46.3 17.0 809
1982-09-15 02:42:30 A 23 08 02.47 -24 35 27.5 809
1982-09-19 05:59:29 A 23 13 09.86 -28 11 01.1 809
1982-09-21 01:54:00 A 23 15 25.36 -29 33 04.6 809
1982-10-11 06:11:00 A 23 39 15.69 -37 29 57.5 675
1982-10-11 06:40:59 A 23 39 17.08 -37 30 10.4 675
1982-10-12 02:59:28 A 23 40 16.96 -37 36 48.2 18.5 809
1982-10-13 03:25:26 A 23 41 28.66 -37 44 00.1 809
1982-10-14 04:17:22 A 23 42 41.86 -37 50 12.7 809
1982-12-03 10:53:59 A 00 48 40.44 -30 14 03.5 20.0 413
1982-12-03 11:13:58 A 00 48 41.41 -30 13 51.4 413
1985-04-14 09:09:25 A 17 44 01.05 +17 21 59.5 B 691
1985-04-14 09:29:56 A 17 44 02.20 +17 22 20.2 B 691
1985-04-14 09:50:47 A 17 44 03.35 +17 22 40.7 B 691
1985-04-19 08:10:16 A 17 50 33.05 +19 21 28.5 B 691
1985-04-19 08:29:47 A 17 50 34.08 +19 21 48.6 B 691
1985-04-19 08:49:58 A 17 50 35.10 +19 22 08.9 B 691
1985-05-08 06:55:36 A 18 10 58.81 +27 14 56.3 675
1985-05-08 07:11:12 A 18 10 59.34 +27 15 12.7 675
1985-05-15 09:11:50 A 18 16 28.16 +30 08 11.5 B 691
1985-05-15 09:37:26 A 18 16 28.81 +30 08 37.9 B 691
1985-05-18 08:40:44 A 18 18 22.54 +31 18 19.4 B 691
1985-05-18 09:01:30 A 18 18 23.01 +31 18 39.8 B 691
1985-05-18 09:23:04 A 18 18 23.49 +31 18 59.9 B 691
1985-08-14 02:16:22 A 18 36 47.94 +18 36 08.9 A 801
1985-09-15 01:16:31 A 19 51 19.60 -17 23 07.4 A 801
1988-08-13 20:24:59 A 16 47 35.38 +15 07 15.2 19.5 C 033
1988-08-13 20:41:00 A 16 47 36.57 +15 06 40.9 C 033
1988-08-13 20:50:00 A 16 47 37.12 +15 06 32.0 C 033
1988-08-13 21:06:00 A 16 47 38.40 +15 05 57.1 C 033
1991-04-10 09:56:45 A 15 52 37.16 +19 33 04.0 688
1991-04-10 10:02:45 A 15 52 37.18 +19 33 10.1 688
1994-09-18 10:07:35 C 16 38 41.66 -02 55 27.1 413
1994-09-18 10:12:01 C 16 38 42.18 -02 55 31.9 413
1997-05-10 21:50:42 C 13 48 55.44 +28 43 02.8 z 046
1997-05-10 21:55:30 C 13 48 55.20 +28 43 04.5 z 046
1997-05-10 21:57:55 C 13 48 55.09 +28 43 05.1 z 046
1997-05-11 23:06:21 C 13 47 54.66 +28 50 14.6 z 046
1997-05-11 23:11:59 C 13 47 54.43 +28 50 16.3 z 046
1997-05-11 23:14:46 C 13 47 54.33 +28 50 17.5 z 046
1997-06-16 08:11:19 C 13 33 53.15 +27 32 48.7 c 608
1997-06-16 09:39:15 C 13 33 53.94 +27 32 14.6 c 608
1997-06-17 09:07:52 C 13 34 09.69 +27 22 59.0 c 608
1997-06-17 09:44:00 C 13 34 10.06 +27 22 44.4 c 608
1997-06-18 07:20:39 C 13 34 26.68 +27 13 58.5 c 608
1997-06-18 08:12:25 C 13 34 27.17 +27 13 38.3 c 608
2000-04-09 00:19:27 C 13 42 04.79 +20 40 10.7 d 049
2000-04-09 00:31:26 C 13 42 04.36 +20 40 17.5 d 049
2000-04-09 00:42:59 C 13 42 03.89 +20 40 25.9 d 049
2000-04-28 05:09:20 c 13 21 43.85 +25 30 44.3 c 699