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
2021-05-05 15:47:53 C 15 01 48.78 -09 34 43.6 q D29
2021-05-05 16:08:16 C 15 01 47.25 -09 34 33.6 q D29
2021-05-09 09:42:00 C 14 55 17.903 -08 52 17.53 U F51
2021-05-09 09:51:59 C 14 55 17.178 -08 52 13.02 U F51
2021-05-09 10:21:57 C 14 55 14.999 -08 51 59.46 U F51
2021-05-09 10:31:57 C 14 55 14.272 -08 51 54.91 U F51
2021-05-09 10:41:55 C 14 55 13.547 -08 51 50.38 U F51
2021-05-09 10:52:49 C 14 55 12.756 -08 51 45.44 U F51
2021-05-09 15:30:36 C 14 54 53.36 -08 49 41.5 q D29
2021-05-09 15:50:57 C 14 54 51.91 -08 49 32.2 q D29
2021-05-09 16:11:19 C 14 54 50.42 -08 49 23.7 q D29
2021-05-11 08:03:28 C 14 52 04.97 -08 31 46.6 V G96
2021-05-11 08:10:20 C 14 52 04.48 -08 31 43.6 V G96
2021-05-11 08:17:13 C 14 52 04.00 -08 31 40.7 V G96
2021-05-11 08:24:08 C 14 52 03.53 -08 31 37.8 V G96
2021-05-14 09:09:09 C 14 47 15.50 -08 01 23.6 V T08
2021-05-14 09:11:48 C 14 47 15.29 -08 01 22.7 V T08
2021-05-14 09:15:49 C 14 47 15.01 -08 01 21.5 V T08
2021-05-14 09:23:08 C 14 47 14.49 -08 01 18.1 V T08
2021-05-15 09:45:25 C 14 45 42.080 -07 51 45.50 U F51
2021-05-15 10:02:47 C 14 45 40.962 -07 51 38.87 U F51
2021-05-15 10:20:07 C 14 45 39.840 -07 51 32.19 U F51
2021-05-15 10:37:29 C 14 45 38.717 -07 51 25.44 U F51
2021-05-31 07:05:18 C 14 26 46.460 -06 02 21.77 U F51
2021-05-31 07:22:34 C 14 26 45.803 -06 02 18.56 U F51
2021-05-31 07:39:48 C 14 26 45.144 -06 02 15.31 U F51
2021-05-31 13:28:20 C 14 26 32.51 -06 01 11.6 q D29
2021-05-31 13:48:42 C 14 26 31.72 -06 01 07.1 q D29
2021-05-31 14:09:04 C 14 26 30.98 -06 01 03.5 q D29
2021-06-07 06:45:13 C 14 21 37.776 -05 37 19.67 U F51
2021-06-07 07:03:02 C 14 21 37.297 -05 37 17.77 U F51
2021-06-07 07:20:57 C 14 21 36.825 -05 37 15.78 U F51
2021-06-07 07:38:49 C 14 21 36.346 -05 37 13.78 U F51
2021-06-09 06:39:59 C 14 20 30.03 -05 32 33.0 V G96
2021-06-09 06:47:31 C 14 20 29.86 -05 32 32.5 V G96
2021-06-09 06:55:02 C 14 20 29.67 -05 32 31.7 V G96
2021-06-09 07:02:36 C 14 20 29.50 -05 32 30.9 V G96
2021-06-09 09:46:01 C 14 20 25.954 -05 32 15.29 U F51
2021-06-09 10:01:51 C 14 20 25.590 -05 32 13.93 U F51
2021-06-09 10:17:32 C 14 20 25.223 -05 32 12.52 U F51
2021-06-09 10:32:43 C 14 20 24.883 -05 32 11.01 U F51
2023-06-07 03:38:12 C 10 12 18.713 +09 08 27.96 V G96
2023-06-07 03:46:00 C 10 12 19.919 +09 08 23.14 V G96
2023-06-07 03:51:27 C 10 12 20.740 +09 08 20.83 V G96
2023-06-07 03:56:54 C 10 12 21.625 +09 08 17.92 V G96