275545 (1998 UN1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2209465239 ± 2.89e-08
Semi-major axis (a)1.5134686470 AU ± 1.10e-09
Inclination (i)32.42431977° ± 4.83e-06
Long. of Asc. Node (Ω)217.84805156° ± 3.68e-06
Arg. of Perihelion (ω)87.72191665° ± 1.10e-05
Mean Anomaly (M)248.63036815° ± 8.23e-06
Mean Motion (n)0.5293612332°/day ± 5.75e-10
Perihelion dist (q)1.17907301 AU ± 4.38e-08
Aphelion dist (Q)1.84786428 AU ± 4.38e-08
Orbital Period1.86191625 yr ± 2.02e-09
Physical Parameters
H (abs. magnitude)18.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.339″
Uncertainty0
Orbit TypeAmor
MOID0.377078 AU
Observations Used577
Oppositions12
Arc Total1998-2024
First Observation Used1998-10-19
Last Observation Used2024-12-26
Observations (611)
Date Type RA Dec Mag Band Observatory
2015-11-24 07:50:59 C 06 30 53.73 -19 32 01.2 u 807
2015-11-24 07:54:16 C 06 30 53.55 -19 32 05.0 u 807
2015-11-24 07:57:55 C 06 30 53.38 -19 32 09.4 u 807
2015-12-24 04:29:46 C 05 44 33.21 -28 53 56.4 u 807
2015-12-24 04:32:18 C 05 44 33.06 -28 53 56.9 u 807
2015-12-24 04:37:43 C 05 44 32.62 -28 53 59.2 u 807
2015-12-24 04:40:06 C 05 44 32.49 -28 54 00.1 u 807
2016-01-02 03:46:35 C 05 30 29.52 -29 22 41.5 u 807
2016-01-02 03:54:06 C 05 30 29.05 -29 22 41.3 u 807
2016-01-02 04:01:38 C 05 30 28.58 -29 22 41.3 u 807
2016-01-03 04:11:41 C 05 29 02.68 -29 22 09.8 u 807
2016-01-03 04:21:13 C 05 29 02.10 -29 22 09.3 u 807
2016-01-03 04:30:31 C 05 29 01.54 -29 22 09.1 u 807
2016-01-10 03:22:34 C 05 20 12.80 -29 00 21.9 u 807
2016-01-10 03:30:07 C 05 20 12.45 -29 00 20.8 u 807
2016-01-10 03:37:39 C 05 20 12.05 -29 00 19.6 u 807
2016-01-11 03:28:05 C 05 19 06.50 -28 54 50.1 u 807
2016-01-11 03:37:19 C 05 19 06.07 -28 54 48.7 u 807
2016-01-11 03:46:48 C 05 19 05.62 -28 54 46.1 u 807
2016-01-13 04:14:02 C 05 17 00.62 -28 41 58.9 u 807
2016-01-13 04:23:17 C 05 17 00.23 -28 41 56.2 u 807
2016-01-13 04:32:45 C 05 16 59.82 -28 41 53.7 u 807
2022-04-03 04:43:18 C 11 17 42.216 -38 07 12.97 V W68
2022-04-03 04:47:12 C 11 17 42.070 -38 07 07.32 V W68
2022-04-03 04:55:03 C 11 17 41.590 -38 06 55.04 V W68
2022-04-03 05:08:44 C 11 17 40.949 -38 06 34.38 V W68
2022-04-05 03:01:02 C 11 15 37.109 -36 56 33.47 V W68
2022-04-05 03:05:22 C 11 15 36.955 -36 56 26.77 V W68
2022-04-05 03:54:42 C 11 15 34.598 -36 55 09.52 V W68
2022-04-05 04:05:06 C 11 15 34.109 -36 54 53.24 V W68
2022-04-24 03:10:28 C 11 05 07.786 -22 53 18.92 V W68
2022-04-24 03:15:04 C 11 05 07.750 -22 53 09.42 V W68
2022-04-24 03:25:37 C 11 05 07.754 -22 52 48.11 V W68
2022-04-24 03:43:49 C 11 05 07.651 -22 52 12.29 V W68
2022-05-05 05:16:00 C 11 08 08.545 -14 10 41.45 V G96
2022-05-05 05:23:29 C 11 08 08.704 -14 10 27.26 V G96
2022-05-05 05:31:00 C 11 08 08.858 -14 10 13.37 V G96
2022-05-05 05:38:29 C 11 08 09.017 -14 09 59.29 V G96
2022-05-29 03:58:10 C 11 33 22.892 +00 46 06.13 V G96
2022-05-29 04:13:13 C 11 33 23.785 +00 46 24.42 V G96
2022-05-29 04:20:45 C 11 33 24.224 +00 46 33.28 V G96
2022-09-17 02:25:31 C 15 57 07.405 +12 04 15.20 V G96
2022-09-17 02:34:57 C 15 57 08.528 +12 04 12.76 V G96
2022-09-17 02:44:22 C 15 57 09.788 +12 04 10.70 V G96
2022-09-17 02:53:47 C 15 57 11.027 +12 04 08.44 V G96
2023-02-09 02:13:43 C 00 40 00.649 +02 29 45.60 V V00
2023-02-09 02:21:11 C 00 40 01.567 +02 29 46.25 V V00
2023-02-09 02:28:37 C 00 40 02.442 +02 29 47.87 V V00
2023-02-09 02:36:04 C 00 40 03.328 +02 29 48.88 V V00
2024-04-17 10:56:22 C 16 31 32.956 -16 31 53.62 V G96