136897 (1998 HJ41)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1247062323 ± 2.28e-08
Semi-major axis (a)1.3633753262 AU ± 8.01e-10
Inclination (i)38.87676715° ± 5.86e-06
Long. of Asc. Node (Ω)211.84992184° ± 1.95e-06
Arg. of Perihelion (ω)120.10387927° ± 1.56e-05
Mean Anomaly (M)22.34131137° ± 1.53e-05
Mean Motion (n)0.6191403824°/day ± 5.45e-10
Perihelion dist (q)1.19335393 AU ± 3.11e-08
Aphelion dist (Q)1.53339673 AU ± 3.12e-08
Orbital Period1.59192699 yr ± 1.40e-09
Physical Parameters
H (abs. magnitude)18.57
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.357″
Uncertainty0
Orbit TypeAmor
MOID0.262340 AU
Observations Used734
Oppositions10
Arc Total1998-2025
First Observation Used1998-04-28
Last Observation Used2025-11-29
Observations (751)
Date Type RA Dec Mag Band Observatory
1998-05-22 23:35:39 C 15 30 57.04 +38 28 50.7 z 587
1998-05-22 23:42:19 C 15 30 56.52 +38 29 03.0 z 587
1998-05-25 23:34:48 C 15 26 04.03 +40 39 24.8 118
1998-05-25 23:38:04 C 15 26 03.80 +40 39 30.3 118
1998-05-25 23:49:29 C 15 26 03.01 +40 39 49.2 118
1998-05-26 01:18:33 C 15 25 56.75 +40 42 18.3 557
1998-05-26 01:23:33 C 15 25 56.47 +40 42 26.7 557
1998-05-26 01:27:17 C 15 25 56.13 +40 42 32.2 557
1998-05-29 01:05:01 C 15 21 16.22 +42 34 39.5 118
1998-05-29 01:08:00 C 15 21 16.09 +42 34 43.7 118
1998-05-29 01:10:58 C 15 21 15.86 +42 34 47.4 118
1998-05-31 23:55:33 C 15 16 55.71 +44 09 56.3 557
1998-05-31 23:58:54 C 15 16 55.50 +44 10 00.7 557
1998-06-01 00:02:14 C 15 16 55.32 +44 10 04.2 557
1998-06-02 00:25:39 C 15 15 29.73 +44 39 34.2 557
1998-06-02 00:29:00 C 15 15 29.63 +44 39 37.8 557
1998-06-02 21:59:17 C 15 14 16.87 +45 04 20.5 046
1998-06-02 22:02:46 C 15 14 16.61 +45 04 23.5 046
1998-06-02 22:05:46 C 15 14 16.36 +45 04 27.3 046
1998-06-06 06:17:01 C 15 10 01.30 +46 26 13.1 658
1998-06-06 06:23:31 C 15 10 00.98 +46 26 19.3 658
1998-06-06 06:29:51 C 15 10 00.57 +46 26 25.1 658
1998-06-07 07:58:27 C 15 08 45.48 +46 49 13.4 658
1998-06-07 08:08:15 C 15 08 44.98 +46 49 22.2 658
1998-06-07 08:17:04 C 15 08 44.50 +46 49 29.1 658
1998-06-14 07:42:24 C 15 01 56.38 +48 47 08.8 658
1998-06-14 07:47:55 C 15 01 56.07 +48 47 11.7 658
1998-06-14 07:53:48 C 15 01 55.86 +48 47 15.3 658
1998-06-14 21:54:10 C 15 01 28.78 +48 54 51.9 046
1998-06-14 23:19:07 C 15 01 25.70 +48 55 35.1 557
1998-06-14 23:22:28 C 15 01 25.62 +48 55 37.0 557
1998-06-28 05:05:41 C 14 56 02.78 +50 37 26.1 z 711
1998-06-28 05:24:46 C 14 56 02.66 +50 37 28.9 z 711
1998-06-29 05:04:48 C 14 56 01.32 +50 40 43.9 z 711
1998-06-29 05:23:42 C 14 56 01.30 +50 40 46.5 z 711
1998-07-19 21:47:55 C 15 06 25.62 +50 23 15.2 557
1998-07-19 21:55:18 C 15 06 25.95 +50 23 12.3 557
1998-07-19 22:24:09 C 15 06 27.05 +50 23 06.7 557
1998-07-19 22:27:31 C 15 06 27.20 +50 23 07.7 557
1998-08-28 04:48:42 C 16 14 29.83 +44 52 51.9 658
1998-08-28 04:55:43 C 16 14 30.57 +44 52 46.8 658
1998-08-28 05:03:32 C 16 14 31.37 +44 52 42.9 658
1998-09-22 05:00:30 C 17 29 08.60 +37 18 04.1 658
1998-09-22 05:13:11 C 17 29 10.30 +37 17 52.7 658
1998-09-22 05:29:30 C 17 29 12.74 +37 17 33.9 658
1998-09-23 04:41:08 C 17 32 36.66 +36 53 55.2 658
1998-09-23 04:46:00 C 17 32 37.30 +36 53 50.4 658
1998-10-19 04:09:15 C 19 16 07.32 +22 41 36.4 658
1998-10-19 04:19:20 C 19 16 08.97 +22 41 21.2 658
2001-03-13 14:59:04 C 09 26 04.82 -52 13 07.1 413