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
2024-05-08 10:38:34 C 16 31 39.991 +10 31 03.07 V T05
2024-05-08 10:41:10 C 16 31 39.946 +10 31 12.61 V T05
2024-05-08 11:12:26 C 16 31 39.072 +10 33 07.78 V T05
2024-05-08 11:17:00 C 16 31 38.966 +10 33 24.34 V T05
2024-05-08 12:55:49 C 16 31 36.183 +10 39 27.92 X F51
2024-05-08 13:13:43 C 16 31 35.685 +10 40 33.41 X F51
2024-05-08 13:31:32 C 16 31 35.193 +10 41 39.03 X F51
2024-05-08 13:49:20 C 16 31 34.704 +10 42 44.19 X F51
2024-05-09 06:38:11 C 16 31 12.492 +11 44 52.55 V W68
2024-05-09 06:42:45 C 16 31 12.382 +11 45 09.29 V W68
2024-05-09 06:50:35 C 16 31 12.163 +11 45 37.98 V W68
2024-05-09 07:41:32 C 16 31 10.690 +11 48 44.78 V W68
2024-05-09 22:41:46 B 16 30 50.301 +12 43 19.01 X B72
2024-05-09 22:45:19 B 16 30 50.201 +12 43 32.09 X B72
2024-05-09 22:48:52 B 16 30 50.099 +12 43 45.18 X B72
2024-05-10 00:03:44 C 16 30 47.397 +12 48 27.07 W M01
2024-05-10 00:06:14 C 16 30 47.323 +12 48 36.19 W M01
2024-05-10 00:08:44 C 16 30 47.249 +12 48 45.31 W M01
2024-05-11 23:59:53 B 16 29 32.427 +15 43 03.61 X B72
2024-05-12 00:01:41 B 16 29 32.387 +15 43 09.80 X B72
2024-05-12 00:03:29 B 16 29 32.310 +15 43 16.41 X B72
2024-05-12 10:53:34 C 16 29 12.995 +16 22 30.61 V 703
2024-05-12 10:57:16 C 16 29 12.869 +16 22 43.82 V 703
2024-05-12 11:04:39 C 16 29 12.570 +16 23 10.39 V 703
2024-05-12 20:48:52 C 16 28 55.81 +16 58 10.1 V O18
2024-05-12 20:58:03 C 16 28 55.49 +16 58 43.0 V O18
2024-05-12 21:07:09 C 16 28 55.18 +16 59 15.7 V O18
2024-05-13 09:56:34 C 16 28 32.444 +17 45 11.66 V 703
2024-05-13 09:59:50 C 16 28 32.239 +17 45 24.12 V 703
2024-05-13 10:03:06 C 16 28 32.164 +17 45 36.04 V 703
2024-05-13 10:06:22 C 16 28 32.016 +17 45 48.31 V 703
2024-05-14 10:14:08 C 16 27 47.056 +19 11 22.74 V 703
2024-05-14 10:17:26 C 16 27 46.926 +19 11 33.14 V 703
2024-05-14 10:20:42 C 16 27 46.782 +19 11 44.95 V 703
2024-05-14 10:23:59 C 16 27 46.652 +19 11 57.16 V 703
2024-05-15 08:24:33 C 16 27 04.442 +20 29 01.07 V G96
2024-05-15 08:31:51 C 16 27 04.158 +20 29 25.87 V G96
2024-05-15 08:39:09 C 16 27 03.870 +20 29 51.25 V G96
2024-05-15 08:46:29 C 16 27 03.582 +20 30 16.70 V G96
2024-05-15 09:27:47 C 16 27 01.969 +20 32 39.91 V 703
2024-05-15 09:31:08 C 16 27 01.883 +20 32 52.37 V 703
2024-05-15 09:34:27 C 16 27 01.696 +20 33 03.28 V 703
2024-05-15 09:37:46 C 16 27 01.552 +20 33 14.36 V 703
2024-05-17 09:20:38 C 16 25 22.703 +23 16 14.88 V 703
2024-05-17 09:24:04 C 16 25 22.523 +23 16 26.22 V 703
2024-05-17 09:27:30 C 16 25 22.418 +23 16 37.34 V 703
2024-05-17 09:30:56 C 16 25 22.321 +23 16 48.36 V 703
2024-05-17 10:02:14 C 16 25 22.051 +23 18 39.28 V T08
2024-05-17 10:04:54 C 16 25 21.941 +23 18 48.56 V T08
2024-05-17 10:09:37 C 16 25 21.754 +23 19 04.51 V T08