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
2007-03-23 13:30:44 C 10 45 21.92 -33 22 30.9 r E12
2007-03-27 14:18:08 C 11 01 56.85 -23 22 36.3 r E12
2007-03-27 14:33:33 C 11 01 58.72 -23 21 17.1 r E12
2007-03-27 14:48:59 C 11 02 00.56 -23 19 57.9 r E12
2007-03-27 15:04:25 C 11 02 02.40 -23 18 38.7 r E12
2007-04-05 21:39:34 C 11 21 37.738 -10 26 12.8 r 084
2007-04-05 21:40:12 C 11 21 37.740 -10 26 11.6 r 084
2007-04-06 21:31:27 C 11 23 04.077 -09 33 22.3 r 084
2007-04-06 21:32:06 C 11 23 04.077 -09 33 21.4 r 084
2007-04-07 02:55:59 C 11 23 23.40 -09 21 17.8 r 808
2007-04-07 03:06:29 C 11 23 23.97 -09 20 54.7 r 808
2007-04-07 03:22:00 C 11 23 24.72 -09 20 22.4 r 808
2007-04-07 04:42:28 C 11 23 30.20 -09 18 07.1 o 644
2007-04-07 05:11:59 C 11 23 31.69 -09 17 05.9 o 644
2007-04-07 05:41:26 C 11 23 33.18 -09 16 04.8 o 644
2007-04-08 03:22:59 C 11 24 46.48 -08 32 04.5 r 808
2007-04-08 03:34:10 C 11 24 47.02 -08 31 42.9 r 808
2007-04-08 03:56:19 C 11 24 48.09 -08 30 59.9 r 808
2007-04-08 21:31:19 C 11 25 45.795 -07 58 33.3 r 084
2007-04-08 21:31:56 C 11 25 45.808 -07 58 32.5 r 084
2007-04-09 02:39:29 C 11 26 02.73 -07 48 36.0 r 808
2007-04-09 02:51:30 C 11 26 03.28 -07 48 14.0 r 808
2007-04-09 03:01:29 C 11 26 03.74 -07 47 57.2 r 808
2007-04-09 20:37:58 C 11 26 59.54 -07 17 41.6 16.6 r 130
2007-04-09 20:41:34 C 11 26 59.72 -07 17 35.6 16.5 r 130
2007-04-09 20:48:03 C 11 27 00.00 -07 17 24.4 16.5 r 130
2007-04-09 20:51:40 C 11 27 00.19 -07 17 18.6 16.7 r 130
2007-04-09 21:19:29 C 11 27 01.130 -07 16 34.3 r 084
2007-04-09 21:20:07 C 11 27 01.151 -07 16 33.0 r 084
2007-04-11 13:19:41 C 11 29 01.89 -06 12 25.8 r 379
2007-04-11 13:21:48 C 11 29 01.96 -06 12 22.5 r 379
2007-04-11 13:26:00 C 11 29 02.16 -06 12 16.2 r 379
2007-04-11 13:30:13 C 11 29 02.34 -06 12 10.2 r 379
2007-04-11 13:39:26 C 11 29 02.71 -06 11 56.2 r 379
2007-04-11 13:45:46 C 11 29 03.00 -06 11 46.8 r 379
2007-04-11 13:47:53 C 11 29 03.09 -06 11 43.6 r 379
2007-04-12 07:05:39 C 11 29 52.67 -05 46 23.1 r H45
2007-04-12 07:07:18 C 11 29 52.75 -05 46 20.7 r H45
2007-04-12 07:09:02 C 11 29 52.80 -05 46 18.3 r H45
2007-04-12 07:10:17 C 11 29 52.85 -05 46 16.4 r H45
2007-04-12 07:11:44 C 11 29 52.93 -05 46 14.4 r H45
2007-04-14 21:20:38 C 11 32 46.245 -04 25 24.0 r 084
2007-04-14 21:21:16 C 11 32 46.281 -04 25 23.1 r 084
2007-04-14 22:45:40 C 11 32 49.812 -04 23 43.5 r 084
2007-04-15 06:26:29 C 11 33 10.57 -04 14 38.3 17.0 c 704
2007-04-15 06:40:01 C 11 33 11.12 -04 14 22.7 16.8 c 704
2007-04-15 06:53:35 C 11 33 11.65 -04 14 07.0 16.8 c 704
2007-04-15 07:07:07 C 11 33 12.20 -04 13 51.5 16.8 c 704
2007-04-15 07:20:46 C 11 33 12.73 -04 13 35.7 16.8 c 704
2007-04-15 19:20:33 C 11 33 45.454 -04 00 07.8 r 084