306431 (1998 SR49)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5322410326 ± 8.50e-08
Semi-major axis (a)2.4818442801 AU ± 2.41e-08
Inclination (i)29.11711311° ± 1.40e-05
Long. of Asc. Node (Ω)21.15538191° ± 1.21e-05
Arg. of Perihelion (ω)54.76806777° ± 2.56e-05
Mean Anomaly (M)330.09300744° ± 4.04e-05
Mean Motion (n)0.2520870192°/day ± 3.68e-09
Perihelion dist (q)1.16090492 AU ± 2.11e-07
Aphelion dist (Q)3.80278364 AU ± 2.14e-07
Orbital Period3.90986528 yr ± 5.70e-08
Physical Parameters
H (abs. magnitude)17.48
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.378″
Uncertainty0
Orbit TypeAmor
MOID0.302248 AU
Observations Used132
Oppositions21
Arc Total1998-2026
First Observation Used1998-09-29
Last Observation Used2026-01-10
Observations (135)
Date Type RA Dec Mag Band Observatory
2011-04-28 08:04:15 C 12 57 54.133 -09 05 55.54 L F51
2011-04-28 08:24:32 C 12 57 53.090 -09 05 56.36 L F51
2011-04-28 08:45:03 C 12 57 52.027 -09 05 57.31 L F51
2011-04-28 09:05:19 C 12 57 50.982 -09 05 58.07 L F51
2015-03-18 12:36:17 C 14 18 33.389 -15 38 32.39 L F51
2015-03-18 12:54:44 C 14 18 32.531 -15 38 35.39 L F51
2015-03-18 13:13:01 C 14 18 31.679 -15 38 38.29 L F51
2015-03-18 13:31:22 C 14 18 30.860 -15 38 41.00 L F51
2015-04-18 08:39:20 C 13 37 09.01 -16 30 40.1 L W84
2015-04-18 08:44:00 C 13 37 08.73 -16 30 40.0 L W84
2015-04-18 08:48:42 C 13 37 08.45 -16 30 40.0 L W84
2015-04-18 08:53:19 C 13 37 08.17 -16 30 40.0 L W84
2015-04-18 08:58:00 C 13 37 07.88 -16 30 39.9 L W84
2015-04-19 08:20:10 C 13 35 44.98 -16 30 28.6 L W84
2015-04-19 08:24:51 C 13 35 44.70 -16 30 28.5 L W84
2015-04-19 08:29:31 C 13 35 44.42 -16 30 28.4 L W84
2015-04-19 08:34:15 C 13 35 44.14 -16 30 28.4 L W84
2015-04-19 08:38:49 C 13 35 43.87 -16 30 28.2 L W84
2015-04-21 08:21:40 C 13 32 56.39 -16 29 50.0 L W84
2015-04-21 08:26:20 C 13 32 56.13 -16 29 49.8 L W84
2015-04-21 08:30:56 C 13 32 55.85 -16 29 49.8 L W84
2015-04-21 08:35:36 C 13 32 55.58 -16 29 49.7 L W84
2015-04-21 08:40:11 C 13 32 55.31 -16 29 49.5 L W84
2015-04-22 08:20:50 C 13 31 33.25 -16 29 23.8 L W84
2015-04-22 08:25:29 C 13 31 32.98 -16 29 23.6 L W84
2015-04-22 08:30:13 C 13 31 32.71 -16 29 23.4 L W84
2015-04-22 08:34:51 C 13 31 32.44 -16 29 23.4 L W84
2015-04-22 08:39:31 C 13 31 32.17 -16 29 23.2 L W84
2019-05-29 07:29:28 C 13 15 52.450 -21 31 30.43 U F51
2019-05-29 08:02:14 C 13 15 51.614 -21 31 28.28 U F51
2019-05-29 08:18:37 C 13 15 51.191 -21 31 26.68 U F51
2026-01-10 16:48:04 C 23 01 03.346 -07 49 50.30 X 033
2026-01-10 16:49:41 C 23 01 03.457 -07 49 48.10 X 033
2026-01-10 16:51:17 C 23 01 03.554 -07 49 46.39 X 033
2026-01-10 17:12:45 C 23 01 05.336 -07 49 20.40 X 033