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
2020-08-28 15:33:48 C 21 09 20.87 +15 40 43.2 V N31
2020-08-28 15:44:22 C 21 09 19.39 +15 40 41.6 V N31
2020-08-28 16:05:28 C 21 09 16.68 +15 40 36.9 V N31
2020-08-28 22:07:48 C 21 08 27.62 +15 39 35.5 17.1 q J43
2020-08-28 22:21:29 C 21 08 25.70 +15 39 33.4 17.4 q J43
2020-08-28 22:35:10 C 21 08 23.78 +15 39 30.3 16.6 q J43
2020-08-28 22:48:50 C 21 08 21.86 +15 39 28.5 17.2 q J43
2020-08-30 02:28:29 C 21 04 34.62 +15 33 46.3 V V93
2020-08-30 03:55:02 C 21 04 22.20 +15 33 26.8 V V93
2020-08-30 05:06:17 C 21 04 11.88 +15 33 10.7 V V93
2020-08-30 18:54:32 C 21 02 15.88 +15 29 47.2 V L54
2020-08-30 19:33:43 C 21 02 10.19 +15 29 37.4 V L54
2020-08-30 20:13:31 C 21 02 04.58 +15 29 29.4 V L54
2020-09-01 08:33:27 C 20 56 48.07 +15 19 05.9 V T08
2020-09-01 08:38:07 C 20 56 47.35 +15 19 04.4 V T08
2020-09-01 09:24:30 C 20 56 40.18 +15 18 49.5 V T08
2020-09-01 09:47:53 C 20 56 36.58 +15 18 41.7 V T08
2020-09-01 21:29:34 C 20 54 52.77 +15 14 34.9 V Z80
2020-09-01 21:39:34 C 20 54 51.18 +15 14 31.1 V Z80
2020-09-02 21:46:47 C 20 51 11.31 +15 05 38.1 V A16
2020-09-02 22:02:52 C 20 51 08.76 +15 05 31.5 V A16
2020-09-02 22:18:58 C 20 51 06.21 +15 05 25.4 V A16
2020-09-02 22:34:01 C 20 51 03.83 +15 05 19.0 V A16
2020-09-03 04:34:33 C 20 50 08.21 +15 02 59.9 V W33
2020-09-03 04:45:23 C 20 50 06.47 +15 02 55.3 V W33
2020-09-03 04:56:05 C 20 50 04.76 +15 02 50.9 V W33
2020-09-03 08:27:34 C 20 49 32.46 +15 01 30.4 V T05
2020-09-03 08:30:12 C 20 49 32.02 +15 01 29.2 V T05
2020-09-03 08:32:20 C 20 49 31.68 +15 01 28.3 V T05
2020-09-03 08:34:19 C 20 49 31.38 +15 01 27.6 V T05
2020-09-03 08:40:56 C 20 49 30.29 +15 01 24.3 V T05
2020-09-03 09:06:10 C 20 49 26.21 +15 01 14.2 V T05
2020-09-03 19:43:00 C 20 47 47.60 +14 56 34.0 V C95
2020-09-03 19:44:55 C 20 47 47.29 +14 56 33.3 V C95
2020-09-03 19:46:48 C 20 47 46.97 +14 56 32.4 V C95
2020-09-03 19:48:43 C 20 47 46.65 +14 56 31.5 V C95
2020-09-03 19:50:33 C 20 47 46.37 +14 56 30.9 V C95
2020-09-03 19:52:26 C 20 47 46.07 +14 56 29.9 V C95
2020-09-03 21:07:13 C 20 47 33.80 +14 55 58.2 V 160
2020-09-03 21:09:33 C 20 47 33.42 +14 55 57.0 V 160
2020-09-03 21:11:52 C 20 47 33.03 +14 55 55.6 V 160
2020-09-04 02:11:13 C 20 46 46.49 +14 53 43.4 V V93
2020-09-04 03:38:01 C 20 46 32.31 +14 53 05.0 V V93
2020-09-04 04:41:53 C 20 46 21.84 +14 52 36.3 V V93
2020-09-04 10:33:59 C 20 45 25.28 +14 50 02.0 V T08
2020-09-04 10:39:19 C 20 45 24.40 +14 49 59.4 V T08
2020-09-04 10:48:39 C 20 45 22.85 +14 49 54.9 V T08
2020-09-04 11:11:22 C 20 45 19.14 +14 49 43.8 V T08
2020-09-04 20:39:06 C 20 43 49.50 +14 45 05.6 V 160
2020-09-04 20:41:39 C 20 43 49.07 +14 45 04.4 V 160