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
2013-10-05 11:15:50 C 04 40 50.48 +26 14 29.5 q 703
2013-10-07 11:23:18 C 04 40 31.95 +24 54 14.3 q G96
2013-10-07 11:30:10 C 04 40 31.84 +24 54 02.6 q G96
2013-10-07 11:44:27 C 04 40 31.68 +24 53 38.4 q G96
2013-10-26 09:30:18 C 04 25 01.17 +10 01 19.3 q 703
2013-10-26 09:44:21 C 04 25 00.31 +10 00 48.8 q 703
2013-10-26 09:58:25 C 04 24 59.45 +10 00 18.9 q 703
2013-10-26 10:12:29 C 04 24 58.60 +09 59 49.5 q 703
2013-11-02 08:20:43 C 04 14 34.05 +04 04 34.2 q 703
2013-11-02 08:35:22 C 04 14 32.97 +04 04 02.8 q 703
2013-11-02 08:50:02 C 04 14 31.94 +04 03 31.6 q 703
2013-11-02 09:04:42 C 04 14 30.92 +04 03 01.5 q 703
2013-11-03 06:02:57 C 04 13 05.53 +03 19 00.9 N I41
2013-11-03 07:28:49 C 04 12 59.36 +03 16 01.8 N I41
2013-11-03 08:04:30 C 04 12 56.76 +03 14 47.1 N I41
2013-11-04 06:03:04 C 04 11 25.55 +02 29 06.1 N I41
2013-11-04 09:06:46 C 04 11 12.07 +02 22 46.7 N I41
2013-11-04 09:57:16 C 04 11 08.34 +02 21 02.5 N I41
2013-11-08 09:17:40 C 04 04 18.98 -00 50 39.9 q 703
2013-11-08 09:31:35 C 04 04 17.96 -00 51 07.5 q 703
2013-11-08 09:45:30 C 04 04 16.88 -00 51 34.9 q 703
2013-11-08 09:59:24 C 04 04 15.80 -00 52 01.7 q 703
2013-11-14 06:02:57 C 03 54 02.76 -05 08 52.1 q 703
2013-11-14 06:12:27 C 03 54 02.05 -05 09 09.6 q 703
2013-11-14 06:21:57 C 03 54 01.39 -05 09 25.8 q 703
2013-11-14 06:31:26 C 03 54 00.69 -05 09 42.4 q 703
2013-11-19 06:06:49 C 03 45 29.61 -08 19 19.7 u H21
2013-11-19 06:13:23 C 03 45 29.13 -08 19 28.9 u H21
2013-11-19 06:20:04 C 03 45 28.63 -08 19 39.1 u H21
2013-11-20 06:29:52 C 03 43 48.92 -08 54 17.6 u H21
2013-11-20 06:34:20 C 03 43 48.58 -08 54 23.6 u H21
2013-11-20 06:38:34 C 03 43 48.27 -08 54 29.4 u H21
2013-11-20 06:43:14 C 03 43 47.96 -08 54 35.4 u H21
2013-11-26 06:59:04 C 03 34 29.03 -11 54 53.0 q 703
2013-11-26 07:09:14 C 03 34 28.53 -11 55 04.0 q 703
2013-11-26 07:19:24 C 03 34 27.97 -11 55 15.9 q 703
2013-11-26 07:29:34 C 03 34 27.30 -11 55 25.4 q 703
2013-12-03 08:21:47 C 03 25 16.590 -14 30 14.99 L F51
2013-12-03 08:39:56 C 03 25 15.653 -14 30 28.52 L F51
2013-12-03 09:00:07 C 03 25 14.616 -14 30 43.75 L F51
2013-12-03 09:16:50 C 03 25 13.757 -14 30 56.24 L F51
2013-12-04 21:10:02 C 03 23 33.91 -14 56 36.0 q 104
2013-12-04 21:20:19 C 03 23 33.50 -14 56 42.2 q 104
2013-12-04 21:28:34 C 03 23 33.04 -14 56 47.7 q 104
2015-11-20 08:37:14 C 06 34 55.96 -17 33 07.3 u 807
2015-11-20 08:39:59 C 06 34 55.81 -17 33 10.3 u 807
2015-11-23 07:24:32 C 06 32 00.15 -19 02 09.8 u 807
2015-11-23 07:27:59 C 06 31 59.97 -19 02 14.6 u 807
2015-11-24 07:43:53 C 06 30 54.09 -19 31 52.9 u 807
2015-11-24 07:47:21 C 06 30 53.91 -19 31 56.8 u 807