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
2020-08-18 09:26:07 C 21 37 33.44 +15 39 59.0 V T05
2020-08-18 10:02:52 C 21 37 29.74 +15 40 04.8 V T05
2020-08-18 10:06:50 C 21 37 29.34 +15 40 05.4 V T05
2020-08-18 14:09:55 C 21 37 06.38 +15 40 37.7 q D29
2020-08-18 14:30:16 C 21 37 04.35 +15 40 40.9 q D29
2020-08-18 14:50:38 C 21 37 02.28 +15 40 44.0 q D29
2020-08-19 22:24:56 C 21 33 54.81 +15 44 46.1 V 160
2020-08-19 22:27:48 C 21 33 54.51 +15 44 46.4 V 160
2020-08-19 22:30:40 C 21 33 54.20 +15 44 46.7 V 160
2020-08-20 21:06:03 C 21 31 34.64 +15 47 02.7 q K73
2020-08-20 21:12:16 C 21 31 34.11 +15 47 03.3 q K73
2020-08-20 22:10:45 C 21 31 27.83 +15 47 07.5 V 160
2020-08-20 22:13:50 C 21 31 27.50 +15 47 07.8 V 160
2020-08-20 22:16:55 C 21 31 27.16 +15 47 07.9 V 160
2020-08-21 08:40:56 C 21 30 20.64 +15 48 00.5 U I41
2020-08-21 08:41:36 C 21 30 20.56 +15 48 00.6 U I41
2020-08-21 08:42:18 C 21 30 20.49 +15 48 00.5 U I41
2020-08-21 08:44:20 C 21 30 20.25 +15 48 00.6 U I41
2020-08-21 08:45:00 C 21 30 20.18 +15 48 00.7 U I41
2020-08-21 19:25:58 C 21 29 12.36 +15 48 38.2 557
2020-08-21 20:24:44 C 21 29 05.84 +15 48 42.3 557
2020-08-21 21:26:45 C 21 28 58.91 +15 48 46.3 557
2020-08-21 21:52:05 C 21 28 56.15 +15 48 49.4 V 160
2020-08-21 21:54:57 C 21 28 55.83 +15 48 49.6 V 160
2020-08-21 21:57:48 C 21 28 55.52 +15 48 49.8 V 160
2020-08-21 22:33:30 C 21 28 51.42 +15 48 50.3 557
2020-08-21 23:33:40 C 21 28 44.69 +15 48 53.4 557
2020-08-22 00:07:42 C 21 28 40.87 +15 48 55.2 557
2020-08-22 01:43:41 C 21 28 30.13 +15 48 59.5 557
2020-08-22 02:23:53 C 21 28 25.66 +15 49 01.1 557
2020-08-22 07:24:05 C 21 27 54.133 +15 49 25.35 U F52
2020-08-22 07:42:48 C 21 27 51.991 +15 49 26.43 U F52
2020-08-22 08:01:28 C 21 27 49.852 +15 49 27.45 U F52
2020-08-22 10:39:01 C 21 27 31.66 +15 49 34.8 V T05
2020-08-22 10:43:37 C 21 27 31.13 +15 49 35.0 V T05
2020-08-22 10:53:11 C 21 27 30.02 +15 49 35.4 V T05
2020-08-22 11:41:28 C 21 27 24.43 +15 49 36.9 V T05
2020-08-22 15:47:46 C 21 26 57.55 +15 49 43.1 q D29
2020-08-22 15:49:03 C 21 26 57.41 +15 49 43.2 q D29
2020-08-22 15:50:19 C 21 26 57.26 +15 49 43.2 q D29
2020-08-22 21:46:59 C 21 26 17.70 +15 49 51.1 V 160
2020-08-22 21:49:58 C 21 26 17.36 +15 49 51.2 V 160
2020-08-22 21:52:57 C 21 26 17.01 +15 49 51.3 V 160
2020-08-24 09:08:58 C 21 22 13.53 +15 50 10.3 V T08
2020-08-24 09:34:42 C 21 22 10.39 +15 50 09.6 V T08
2020-08-24 09:39:22 C 21 22 09.79 +15 50 09.9 V T08
2020-08-24 09:44:21 C 21 22 09.17 +15 50 09.3 V T08
2020-08-24 09:51:28 C 21 22 08.28 +15 50 09.5 V T08
2020-08-24 09:52:08 C 21 22 08.23 +15 50 09.0 V T08
2020-08-24 10:28:32 C 21 22 03.67 +15 50 07.4 V T08