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
2020-09-13 08:47:06 C 20 07 58.05 +12 20 18.7 V T08
2020-09-13 21:02:40 C 20 05 38.26 +12 08 19.9 V L63
2020-09-13 21:25:25 C 20 05 33.75 +12 07 57.6 V L63
2020-09-13 21:47:36 C 20 05 29.37 +12 07 35.0 V L63
2020-09-14 02:47:13 C 20 04 32.58 +12 02 42.1 V V93
2020-09-14 03:58:58 C 20 04 18.30 +12 01 30.4 V V93
2020-09-14 05:14:07 C 20 04 03.42 +12 00 14.9 V V93
2020-09-14 18:04:47 C 20 01 35.51 +11 47 12.6 V 089
2020-09-14 18:08:13 C 20 01 34.83 +11 47 08.5 V 089
2020-09-14 18:11:40 C 20 01 34.13 +11 47 05.2 V 089
2020-09-14 18:15:07 C 20 01 33.46 +11 47 01.6 V 089
2020-09-14 18:18:34 C 20 01 32.75 +11 46 58.3 V 089
2020-09-14 18:22:01 C 20 01 32.08 +11 46 54.8 V 089
2020-09-15 09:12:21 C 19 58 37.27 +11 31 33.0 V T05
2020-09-15 09:36:51 C 19 58 32.32 +11 31 06.3 V T05
2020-09-15 09:47:25 C 19 58 30.19 +11 30 54.9 V T05
2020-09-15 19:57:15 C 19 56 31.36 +11 19 46.6 V 160
2020-09-15 20:00:04 C 19 56 30.79 +11 19 43.4 V 160
2020-09-15 20:02:53 C 19 56 30.21 +11 19 40.0 V 160
2020-09-15 20:59:39 C 19 56 18.67 +11 18 38.5 V L63
2020-09-15 21:28:53 C 19 56 12.74 +11 18 06.1 V L63
2020-09-15 21:57:59 C 19 56 06.79 +11 17 34.3 V L63
2020-09-16 01:46:56 C 19 55 22.57 +11 13 23.0 V V93
2020-09-16 03:13:08 C 19 55 04.91 +11 11 47.0 V V93
2020-09-16 04:24:44 C 19 54 50.27 +11 10 27.1 V V93
2020-09-16 17:49:52 C 19 52 10.60 +10 55 14.7 V 089
2020-09-16 17:53:19 C 19 52 09.87 +10 55 10.9 V 089
2020-09-16 17:56:46 C 19 52 09.18 +10 55 07.2 V 089
2020-09-16 18:00:13 C 19 52 08.46 +10 55 02.9 V 089
2020-09-16 18:03:40 C 19 52 07.77 +10 54 59.0 V 089
2020-09-16 18:07:07 C 19 52 07.08 +10 54 55.0 V 089
2020-09-17 17:39:21 C 19 47 22.25 +10 27 12.0 V 089
2020-09-17 17:49:39 C 19 47 20.10 +10 26 59.4 V 089
2020-09-17 17:53:05 C 19 47 19.34 +10 26 54.7 V 089
2020-09-17 18:03:23 C 19 47 17.17 +10 26 43.1 V 089
2020-09-17 18:06:49 C 19 47 16.47 +10 26 39.0 V 089
2020-09-17 20:29:56 C 19 46 46.96 +10 23 47.0 V 160
2020-09-17 20:32:52 C 19 46 46.34 +10 23 43.4 V 160
2020-09-17 20:35:48 C 19 46 45.73 +10 23 39.9 V 160
2020-09-18 02:50:21 C 19 45 29.52 +10 16 02.9 V V93
2020-09-18 03:51:31 C 19 45 16.60 +10 14 47.4 V V93
2020-09-18 04:53:21 C 19 45 03.63 +10 13 30.9 V V93
2020-09-18 07:09:26 C 19 44 36.40 +10 10 53.4 V T05
2020-09-18 07:14:07 C 19 44 35.43 +10 10 47.6 V T05
2020-09-18 07:24:48 C 19 44 33.16 +10 10 34.4 V T05
2020-09-18 20:14:01 C 19 41 54.93 +09 54 15.7 V L63
2020-09-18 20:18:26 C 19 41 53.93 +09 54 10.2 V 160
2020-09-18 20:21:03 C 19 41 53.36 +09 54 06.7 V 160
2020-09-18 20:23:34 C 19 41 52.88 +09 54 03.6 V 160
2020-09-18 20:38:28 C 19 41 49.75 +09 53 44.1 V L63