136900 (1998 HL49)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6367117241 ± 8.56e-09
Semi-major axis (a)1.7474083419 AU ± 7.92e-10
Inclination (i)10.97962249° ± 1.81e-06
Long. of Asc. Node (Ω)205.93934994° ± 7.13e-06
Arg. of Perihelion (ω)239.26481064° ± 7.17e-06
Mean Anomaly (M)58.90437048° ± 2.72e-06
Mean Motion (n)0.4266980608°/day ± 2.90e-10
Perihelion dist (q)0.63481296 AU ± 1.50e-08
Aphelion dist (Q)2.86000372 AU ± 1.50e-08
Orbital Period2.30989164 yr ± 1.57e-09
Physical Parameters
H (abs. magnitude)17.39
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.235″
Uncertainty0
Orbit TypeApollo
MOID0.084573 AU
Observations Used833
Oppositions14
Arc Total1998-2023
First Observation Used1998-04-30
Last Observation Used2023-06-07
Observations (895)
Date Type RA Dec Mag Band Observatory
2014-03-29 08:01:00 C 15 20 21.58 -18 43 04.3 R G45
2014-03-29 08:17:25 C 15 20 20.08 -18 42 51.0 R G45
2014-03-29 08:33:51 C 15 20 18.59 -18 42 37.2 R G45
2014-03-29 08:50:18 C 15 20 17.12 -18 42 24.0 R G45
2014-03-29 09:06:42 C 15 20 15.63 -18 42 10.3 R G45
2014-03-29 10:56:57 C 15 20 05.73 -18 40 40.0 o 691
2014-03-29 11:22:30 C 15 20 03.41 -18 40 18.9 o 691
2014-03-29 11:48:02 C 15 20 01.10 -18 39 58.1 o 691
2014-03-30 08:09:27 C 15 18 14.45 -18 23 08.3 R G45
2014-03-30 08:25:51 C 15 18 12.94 -18 22 54.8 R G45
2014-03-30 08:58:42 C 15 18 09.91 -18 22 27.2 R G45
2014-03-30 09:15:06 C 15 18 08.42 -18 22 13.8 R G45
2014-04-02 10:44:35 C 15 11 28.24 -17 20 16.6 o 691
2014-04-02 11:10:08 C 15 11 25.79 -17 19 54.7 o 691
2014-04-02 11:35:40 C 15 11 23.33 -17 19 32.5 o 691
2014-04-04 18:02:48 C 15 06 17.44 -16 32 40.6 q D29
2014-04-04 18:41:27 C 15 06 13.64 -16 32 06.9 q D29
2014-04-04 19:20:07 C 15 06 09.88 -16 31 33.3 q D29
2014-04-06 09:48:52 C 15 02 29.83 -15 58 05.1 o 691
2014-04-06 10:14:25 C 15 02 27.29 -15 57 42.7 o 691
2014-04-06 10:39:54 C 15 02 24.77 -15 57 20.4 o 691
2014-04-07 09:42:47 C 15 00 12.00 -15 37 13.2 o 691
2014-04-07 10:08:18 C 15 00 09.49 -15 36 50.2 o 691
2014-04-07 10:33:49 C 15 00 06.94 -15 36 27.7 o 691
2014-04-20 08:53:31 C 14 30 37.34 -11 11 15.5 q 703
2014-04-20 09:03:20 C 14 30 36.39 -11 11 07.4 q 703
2014-04-20 09:13:10 C 14 30 35.53 -11 11 00.3 q 703
2014-04-20 09:22:59 C 14 30 34.53 -11 10 52.0 q 703
2014-04-21 05:09:48 C 14 28 48.89 -10 55 02.7 o 691
2014-04-21 05:35:19 C 14 28 46.58 -10 54 42.5 o 691
2014-04-21 06:00:51 C 14 28 44.22 -10 54 22.4 o 691
2014-04-23 09:33:47 C 14 24 13.287 -10 14 09.07 L F51
2014-04-23 09:52:05 C 14 24 11.661 -10 13 55.17 L F51
2014-04-23 09:53:02 C 14 24 11.578 -10 13 54.45 L F51
2014-04-23 10:10:23 C 14 24 10.029 -10 13 41.17 L F51
2014-04-23 10:11:21 C 14 24 09.941 -10 13 40.44 L F51
2014-04-23 10:28:42 C 14 24 08.395 -10 13 27.20 L F51
2014-04-23 10:29:39 C 14 24 08.310 -10 13 26.48 L F51
2014-04-24 05:14:51 C 14 22 32.20 -09 59 03.1 L W84
2014-04-24 05:19:25 C 14 22 31.80 -09 58 59.7 L W84
2014-04-24 05:23:58 C 14 22 31.40 -09 58 56.2 L W84
2014-04-24 05:28:32 C 14 22 31.00 -09 58 52.8 L W84
2014-04-24 05:33:06 C 14 22 30.60 -09 58 49.3 L W84
2014-04-25 05:14:48 C 14 20 31.35 -09 41 10.6 L W84
2014-04-25 05:16:50 C 14 20 31.64 -09 41 20.7 o 691
2014-04-25 05:19:22 C 14 20 30.96 -09 41 07.2 L W84
2014-04-25 05:23:56 C 14 20 30.57 -09 41 03.8 L W84
2014-04-25 05:28:29 C 14 20 30.18 -09 41 00.5 L W84
2014-04-25 05:33:05 C 14 20 29.78 -09 40 57.1 L W84
2014-04-25 05:42:22 C 14 20 29.45 -09 41 02.0 o 691