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
1998-11-15 19:37:44 C 11 46 31.83 +65 55 36.9 360
1998-11-15 19:41:45 C 11 46 33.28 +65 55 34.2 360
1998-11-15 19:45:45 C 11 46 34.72 +65 55 32.1 360
1999-01-22 04:25:32 C 14 14 20.84 +54 13 19.0 18.3 561
1999-01-22 04:29:29 C 14 14 20.54 +54 13 19.4 561
1999-01-22 04:33:29 C 14 14 20.33 +54 13 19.8 561
1999-01-23 04:23:07 C 14 12 57.12 +54 15 01.5 18.5 c 561
1999-01-23 04:27:00 C 14 12 56.86 +54 15 01.9 c 561
1999-01-23 04:30:59 C 14 12 56.63 +54 15 02.4 c 561
1999-01-24 12:06:25 C 14 10 57.20 +54 17 27.7 z 711
1999-01-24 12:17:23 C 14 10 56.43 +54 17 28.6 z 711
1999-02-09 04:57:44 C 13 33 38.59 +54 30 42.2 557
1999-02-09 05:01:06 C 13 33 38.14 +54 30 42.4 557
1999-02-09 05:04:26 C 13 33 37.63 +54 30 41.8 557
1999-02-19 10:21:06 C 12 57 53.14 +53 38 57.5 z 711
1999-02-19 10:29:05 C 12 57 51.80 +53 38 54.4 z 711
1999-02-20 10:32:45 C 12 54 04.86 +53 29 20.6 z 711
1999-02-20 10:41:07 C 12 54 03.53 +53 29 17.0 z 711
2002-06-08 10:01:38 C 01 32 48.75 -05 46 30.9 c 809
2002-06-08 10:22:26 C 01 32 50.56 -05 46 14.0 c 809
2002-06-08 10:31:53 C 01 32 51.35 -05 46 06.7 c 809
2002-08-08 09:21:55 C 04 05 36.57 +18 57 03.8 c 649
2002-08-08 09:28:53 C 04 05 37.53 +18 57 12.9 c 649
2002-08-08 09:35:53 C 04 05 38.48 +18 57 21.8 c 649
2002-08-09 09:35:18 C 04 08 55.82 +19 28 02.0 c 649
2002-08-09 09:42:14 C 04 08 56.76 +19 28 11.0 c 649
2002-08-09 09:48:28 C 04 08 57.62 +19 28 19.2 c 649
2003-01-16 11:56:15 C 13 56 09.71 +23 00 42.7 c 711
2003-01-16 12:18:16 C 13 56 09.99 +23 00 36.8 c 711
2003-01-16 12:40:17 C 13 56 10.08 +23 00 30.7 c 711
2003-03-24 08:23:16 C 12 35 40.77 +18 55 15.4 19.9 c 644
2003-03-24 08:53:49 C 12 35 38.04 +18 55 03.5 20.4 c 644
2003-03-24 09:26:15 C 12 35 35.18 +18 54 50.3 20.2 c 644
2007-04-06 05:22:24 C 12 58 22.36 +01 32 43.2 20.4 o H55
2007-04-06 05:45:11 C 12 58 20.74 +01 32 40.6 20.3 o H55
2007-04-06 05:50:11 C 12 58 20.44 +01 32 39.4 20.5 o H55
2007-04-06 06:04:49 C 12 58 19.42 +01 32 36.9 20.2 o H55
2007-04-06 06:09:23 C 12 58 19.03 +01 32 36.4 20.2 o H55
2007-04-25 04:21:25 C 12 31 02.78 +00 11 26.1 r G96
2007-04-25 04:28:35 C 12 31 02.42 +00 11 24.3 r G96
2007-04-25 04:35:44 C 12 31 02.06 +00 11 23.1 r G96
2007-04-25 04:42:55 C 12 31 01.66 +00 11 21.7 r G96
2011-03-25 07:29:49 C 13 47 30.81 -08 23 23.4 o 691
2011-03-25 07:55:21 C 13 47 29.28 -08 23 25.7 o 691
2011-03-25 08:20:54 C 13 47 27.64 -08 23 28.3 o 691
2011-04-06 06:53:02 C 13 29 17.81 -08 43 48.2 o 691
2011-04-06 07:18:38 C 13 29 16.13 -08 43 49.6 o 691
2011-04-06 07:44:15 C 13 29 14.42 -08 43 51.2 o 691
2011-04-13 05:28:02 C 13 18 38.47 -08 51 45.9 o 691
2011-04-13 05:53:37 C 13 18 36.84 -08 51 46.6 o 691