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
2024-05-17 10:24:13 C 16 25 21.113 +23 19 53.11 V T08
2024-05-17 10:55:30 C 16 25 19.774 +23 21 38.16 V T08
2024-05-17 11:28:02 C 16 25 18.394 +23 23 27.38 V T08
2024-05-17 11:32:53 C 16 25 18.173 +23 23 43.26 V T08
2024-05-17 11:43:57 C 16 25 17.712 +23 24 20.34 V T08
2024-05-19 09:31:59 C 16 23 35.459 +25 54 34.96 V 703
2024-05-19 09:35:16 C 16 23 35.293 +25 54 46.12 V 703
2024-05-19 09:38:33 C 16 23 35.214 +25 54 56.63 V 703
2024-05-19 09:41:49 C 16 23 35.012 +25 55 06.96 V 703
2024-05-20 07:59:40 C 16 22 43.806 +27 05 59.57 V 703
2024-05-20 08:03:00 C 16 22 43.705 +27 06 09.04 V 703
2024-05-20 08:06:19 C 16 22 43.565 +27 06 19.87 V 703
2024-05-20 08:09:39 C 16 22 43.406 +27 06 29.99 V 703
2024-05-20 11:40:23 C 16 22 34.934 +27 17 35.56 V T05
2024-05-20 11:44:56 C 16 22 34.728 +27 17 49.63 V T05
2024-05-20 11:54:20 C 16 22 34.262 +27 18 18.79 V T05
2024-05-20 12:09:18 C 16 22 33.566 +27 19 06.13 V T05
2024-05-21 09:30:53 C 16 21 42.534 +28 25 05.23 V 703
2024-05-21 09:34:10 C 16 21 42.426 +28 25 14.92 V 703
2024-05-21 09:37:27 C 16 21 42.282 +28 25 25.21 V 703
2024-05-21 09:40:44 C 16 21 42.113 +28 25 34.79 V 703
2024-05-22 09:16:39 C 16 20 44.848 +29 36 46.76 V 703
2024-05-22 09:20:02 C 16 20 44.646 +29 36 56.45 V 703
2024-05-22 09:23:25 C 16 20 44.459 +29 37 07.14 V 703
2024-05-22 09:26:47 C 16 20 44.272 +29 37 17.00 V 703
2024-05-22 11:19:49 C 16 20 40.056 +29 42 59.22 V T08
2024-05-22 11:24:28 C 16 20 39.838 +29 43 12.54 V T08
2024-05-22 11:34:28 C 16 20 39.353 +29 43 42.10 V T08
2024-05-22 12:14:06 C 16 20 37.423 +29 45 39.31 V T08
2024-05-22 13:02:52 C 16 20 35.168 +29 48 02.37 X F51
2024-05-22 13:23:32 C 16 20 34.207 +29 49 02.94 X F51
2024-05-22 14:04:48 C 16 20 32.305 +29 51 03.73 X F51
2024-05-23 10:55:41 C 16 19 41.578 +30 52 03.00 V T05
2024-05-23 11:00:15 C 16 19 41.383 +30 52 16.54 V T05
2024-05-23 11:01:33 C 16 19 41.280 +30 52 20.42 V T05
2024-05-23 11:59:30 C 16 19 38.429 +30 55 05.95 V T05
2024-05-23 12:01:05 C 16 19 38.366 +30 55 10.56 V T05
2024-05-23 12:52:20 C 16 19 35.921 +30 57 37.63 X F51
2024-05-23 13:30:12 C 16 19 34.138 +30 59 25.30 X F52
2024-05-23 13:51:38 C 16 19 33.125 +31 00 26.43 X F51
2024-05-23 14:08:38 C 16 19 32.340 +31 01 14.61 X F52
2024-05-23 14:12:13 C 16 19 32.176 +31 01 24.86 X F51
2024-05-23 14:28:30 C 16 19 31.428 +31 02 10.98 X F52
2024-05-25 11:05:47 C 16 17 38.842 +33 06 50.72 V T08
2024-05-25 11:10:34 C 16 17 38.614 +33 07 03.97 V T08
2024-05-25 12:01:44 C 16 17 36.070 +33 09 22.10 V T08
2024-05-25 12:17:28 C 16 17 35.294 +33 10 03.65 V T08
2024-05-25 13:20:46 C 16 17 32.219 +33 12 53.24 X F51
2024-05-25 13:38:32 C 16 17 31.366 +33 13 40.69 X F51
2024-05-25 14:01:14 C 16 17 30.295 +33 14 41.05 X F51