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
2015-04-07 09:43:14 C 11 23 50.203 +17 51 46.16 L F51
2015-04-07 10:02:09 C 11 23 49.514 +17 51 54.47 L F51
2015-04-07 10:21:17 C 11 23 48.795 +17 52 02.72 L F51
2015-04-07 10:40:35 C 11 23 48.069 +17 52 11.22 L F51
2015-04-09 14:07:17 C 11 22 01.08 +18 14 10.9 q D29
2015-04-09 14:28:52 C 11 22 00.29 +18 14 19.6 q D29
2015-04-09 14:50:28 C 11 21 59.52 +18 14 28.6 q D29
2015-04-20 12:40:40 C 11 14 33.00 +19 44 53.2 q D29
2015-04-20 13:03:31 C 11 14 32.44 +19 45 00.8 q D29
2017-01-07 05:40:49 C 06 30 41.65 -10 13 29.3 q G96
2017-01-07 05:54:04 C 06 30 40.99 -10 13 23.8 q G96
2017-01-07 06:00:14 C 06 30 40.74 -10 13 21.7 q G96
2017-01-07 06:06:28 C 06 30 40.47 -10 13 19.8 q G96
2017-12-29 14:38:47 C 11 51 40.262 +00 20 44.68 U F51
2017-12-29 15:13:22 C 11 51 40.961 +00 20 47.14 U F51
2017-12-29 15:30:36 C 11 51 41.312 +00 20 48.50 U F51
2018-02-25 07:00:59 C 11 42 57.61 +08 10 12.7 U G96
2018-02-25 07:08:29 C 11 42 57.34 +08 10 16.9 U G96
2018-02-25 07:15:57 C 11 42 57.10 +08 10 20.4 U G96
2018-02-25 07:23:26 C 11 42 56.83 +08 10 25.2 U G96
2018-03-13 17:15:56 C 11 27 15.93 +12 11 12.5 q D29
2018-03-13 18:09:23 C 11 27 13.56 +12 11 45.2 q D29
2018-03-19 08:12:44 C 11 21 28.930 +13 31 29.86 U F51
2018-03-19 08:30:27 C 11 21 28.152 +13 31 40.13 U F51
2018-03-19 08:48:09 C 11 21 27.371 +13 31 50.44 U F51
2018-03-19 09:06:01 C 11 21 26.581 +13 32 00.82 U F51
2018-03-23 06:27:49 C 11 17 30.10 +14 24 54.1 U G96
2018-03-23 06:35:21 C 11 17 29.69 +14 24 58.9 U G96
2018-03-23 06:42:53 C 11 17 29.36 +14 25 02.0 U G96
2018-03-23 06:50:27 C 11 17 29.07 +14 25 06.0 U G96
2018-04-11 05:10:14 C 11 01 14.56 +17 54 24.3 U G96
2018-04-11 05:18:19 C 11 01 14.34 +17 54 27.4 U G96
2018-04-11 05:26:23 C 11 01 14.11 +17 54 30.2 U G96
2018-04-11 05:34:28 C 11 01 13.87 +17 54 33.1 U G96
2020-01-25 07:15:35 C 05 54 10.511 -07 58 14.38 U F51
2020-01-25 07:31:17 C 05 54 10.082 -07 58 06.10 U F51
2020-01-25 07:47:00 C 05 54 09.638 -07 57 57.55 U F51
2020-01-25 08:02:41 C 05 54 09.191 -07 57 49.31 U F51
2020-01-29 05:17:02 C 05 51 53.68 -07 07 05.5 V G96
2020-01-29 05:24:25 C 05 51 53.51 -07 07 01.5 V G96
2020-01-29 05:31:47 C 05 51 53.36 -07 06 57.5 V G96
2020-01-29 05:39:09 C 05 51 53.18 -07 06 53.3 V G96
2021-01-17 13:39:42 C 11 42 31.518 +01 28 46.84 U F52
2021-01-17 13:56:29 C 11 42 31.481 +01 28 51.16 U F52
2021-01-17 14:13:21 C 11 42 31.482 +01 28 54.90 U F52
2021-02-07 08:45:42 C 11 36 40.41 +04 23 48.5 V G96
2021-02-07 08:53:06 C 11 36 40.24 +04 23 51.9 V G96
2021-02-07 09:00:28 C 11 36 40.07 +04 23 55.3 V G96
2021-02-07 09:07:52 C 11 36 39.88 +04 23 58.4 V G96
2021-02-16 12:24:49 C 11 30 40.718 +06 12 12.48 U F52