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
2025-04-09 05:38:58 C 13 51 28.430 -30 00 13.39 V W68
2025-04-09 05:47:26 C 13 51 27.823 -29 59 51.36 V W68
2025-04-09 06:34:57 C 13 51 24.653 -29 57 48.46 V W68
2025-04-17 05:45:21 C 13 39 13.030 -20 41 31.27 V W68
2025-04-17 05:57:24 C 13 39 12.216 -20 40 52.57 V W68
2025-04-17 06:11:59 C 13 39 11.158 -20 40 06.06 V W68
2025-04-17 06:14:37 C 13 39 11.018 -20 39 57.35 V W68
2025-04-18 23:29:18 C 13 36 31.128 -18 25 36.30 V M22
2025-04-18 23:35:29 C 13 36 30.696 -18 25 15.85 V M22
2025-04-18 23:45:28 C 13 36 30.014 -18 24 42.88 V M22
2025-04-19 00:00:02 C 13 36 28.980 -18 23 54.31 V M22
2025-04-20 08:55:46 C 13 34 22.274 -16 34 22.51 V 703
2025-04-20 08:59:06 C 13 34 22.004 -16 34 12.43 V 703
2025-04-20 09:02:26 C 13 34 21.770 -16 34 00.05 V 703
2025-04-20 09:05:46 C 13 34 21.540 -16 33 49.50 V 703
2025-04-21 04:27:17 C 13 33 08.414 -15 28 00.48 V W68
2025-04-21 04:42:11 C 13 33 07.399 -15 27 10.19 V W68
2025-04-21 04:46:47 C 13 33 07.090 -15 26 53.92 V W68
2025-04-21 04:54:11 C 13 33 06.569 -15 26 29.18 V W68
2025-04-22 06:17:53 C 13 31 31.210 -14 00 08.86 V G96
2025-04-22 06:25:58 C 13 31 30.659 -13 59 41.06 V G96
2025-04-22 06:34:03 C 13 31 30.119 -13 59 13.52 V G96
2025-04-22 06:42:08 C 13 31 29.572 -13 58 46.20 V G96
2025-04-22 09:10:48 C 13 31 19.542 -13 50 15.04 V 703
2025-04-22 09:14:08 C 13 31 19.276 -13 50 03.77 V 703
2025-04-22 09:17:28 C 13 31 19.088 -13 49 52.54 V 703
2025-04-22 09:20:48 C 13 31 18.869 -13 49 40.30 V 703
2025-04-23 07:20:33 C 13 29 57.822 -12 34 01.16 V V00
2025-04-23 07:28:38 C 13 29 57.286 -12 33 33.34 V V00
2025-04-23 07:36:42 C 13 29 56.753 -12 33 05.51 V V00
2025-04-23 07:44:48 C 13 29 56.213 -12 32 37.46 V V00
2025-04-24 07:52:37 C 13 28 27.916 -11 09 14.54 V 703
2025-04-24 07:55:53 C 13 28 27.728 -11 09 03.42 V 703
2025-04-24 07:59:08 C 13 28 27.476 -11 08 52.08 V 703
2025-04-24 08:02:24 C 13 28 27.354 -11 08 41.14 V 703
2025-04-25 03:59:29 C 13 27 16.068 -09 59 16.62 V W68
2025-04-25 04:04:09 C 13 27 15.742 -09 59 00.53 V W68
2025-04-25 04:13:08 C 13 27 15.223 -09 58 29.24 V W68
2025-04-25 05:04:01 C 13 27 11.911 -09 55 33.17 V W68
2025-04-26 03:48:33 C 13 25 52.181 -08 36 50.72 V W68
2025-04-26 04:38:54 C 13 25 48.994 -08 33 56.27 V W68
2025-04-26 04:44:10 C 13 25 48.670 -08 33 38.52 V W68
2025-04-26 04:53:17 C 13 25 48.094 -08 33 06.66 V W68
2025-04-26 07:55:51 C 13 25 37.438 -08 22 56.24 V 703
2025-04-26 07:59:10 C 13 25 37.196 -08 22 44.47 V 703
2025-04-26 08:02:29 C 13 25 37.024 -08 22 33.49 V 703
2025-04-26 08:05:48 C 13 25 36.836 -08 22 21.40 V 703
2025-04-26 23:37:44 C 13 24 43.951 -07 28 44.36 V R17
2025-04-26 23:58:16 C 13 24 42.684 -07 27 33.62 V R17
2025-04-27 00:18:49 C 13 24 41.405 -07 26 22.88 V R17