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
2014-04-25 06:07:55 C 14 20 27.26 -09 40 43.2 o 691
2014-04-29 10:42:59 C 14 12 28.356 -08 30 06.12 L F51
2014-04-29 11:01:44 C 14 12 26.888 -08 29 53.63 L F51
2014-04-29 11:20:29 C 14 12 25.419 -08 29 41.13 L F51
2014-04-29 11:39:16 C 14 12 23.950 -08 29 28.61 L F51
2014-05-07 07:12:04 C 13 59 46.79 -06 38 35.7 q 703
2014-05-07 07:20:49 C 13 59 46.24 -06 38 31.1 q 703
2014-05-07 07:29:32 C 13 59 45.68 -06 38 27.1 q 703
2014-05-07 07:38:16 C 13 59 45.15 -06 38 23.0 q 703
2014-06-29 06:52:02 C 13 44 23.599 -04 04 29.68 L F51
2014-06-29 07:08:02 C 13 44 23.921 -04 04 31.96 L F51
2014-06-29 07:24:00 C 13 44 24.247 -04 04 34.22 L F51
2019-05-26 09:47:07 C 16 46 08.595 -10 16 48.38 U F51
2019-05-26 10:18:47 C 16 46 06.693 -10 16 41.93 U F51
2019-05-26 10:34:39 C 16 46 05.735 -10 16 38.75 U F51
2019-05-30 09:42:52 C 16 40 28.024 -09 57 48.67 U F51
2019-05-30 10:17:38 C 16 40 25.914 -09 57 42.02 U F51
2019-05-30 10:35:04 C 16 40 24.855 -09 57 38.57 U F51
2019-05-31 10:51:09 C 16 38 58.840 -09 53 05.66 U F51
2019-05-31 11:09:45 C 16 38 57.714 -09 53 02.06 U F51
2019-05-31 11:46:58 C 16 38 55.457 -09 52 55.62 U F51
2019-06-03 11:19:12 C 16 34 43.707 -09 40 09.91 U F51
2019-06-03 11:37:30 C 16 34 42.611 -09 40 06.77 U F51
2019-06-03 11:55:50 C 16 34 41.524 -09 40 03.50 U F51
2019-06-03 12:14:14 C 16 34 40.422 -09 40 00.37 U F51
2019-06-08 08:55:13 C 16 27 59.908 -09 21 28.95 U F51
2019-06-08 09:10:10 C 16 27 59.061 -09 21 26.83 U F51
2019-06-08 09:25:07 C 16 27 58.198 -09 21 24.60 U F51
2019-06-08 09:40:03 C 16 27 57.337 -09 21 22.35 U F51
2019-07-04 07:39:42 C 16 00 10.391 -08 36 54.76 U F51
2019-07-04 07:57:38 C 16 00 09.807 -08 36 54.65 U F51
2019-07-04 08:15:32 C 16 00 09.233 -08 36 55.01 U F51
2020-07-14 09:11:00 C 22 14 57.35 +10 17 05.0 V G96
2020-07-14 09:17:48 C 22 14 57.29 +10 17 08.2 V G96
2020-07-14 09:24:37 C 22 14 57.23 +10 17 11.5 V G96
2020-07-14 09:31:26 C 22 14 57.18 +10 17 15.1 V G96
2020-07-19 11:18:44 C 22 13 44.558 +11 16 22.53 U F52
2020-07-19 11:33:47 C 22 13 44.303 +11 16 29.76 U F52
2020-07-25 09:47:34 C 22 10 51.60 +12 23 02.2 U I41
2020-07-25 10:54:16 C 22 10 49.66 +12 23 32.5 U I41
2020-07-26 00:22:50 C 22 10 28.13 +12 29 37.4 V 160
2020-07-26 00:27:55 C 22 10 28.02 +12 29 40.0 V 160
2020-07-26 00:33:01 C 22 10 27.88 +12 29 42.0 V 160
2020-07-26 09:08:02 C 22 10 13.44 +12 33 36.3 U I41
2020-07-26 10:01:25 C 22 10 11.78 +12 34 00.4 U I41
2020-07-27 09:14:26 C 22 09 30.71 +12 44 23.7 V 703
2020-07-27 09:22:39 C 22 09 30.46 +12 44 27.3 V 703
2020-07-27 09:30:50 C 22 09 30.15 +12 44 31.1 V 703
2020-07-27 09:39:03 C 22 09 29.89 +12 44 34.6 V 703
2020-07-27 23:29:41 C 22 09 04.19 +12 50 40.4 V 160