197588 (2004 HE12)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4659909184 ± 6.21e-08
Semi-major axis (a)1.8453321201 AU ± 4.34e-09
Inclination (i)42.71780691° ± 8.91e-06
Long. of Asc. Node (Ω)338.02510849° ± 6.73e-06
Arg. of Perihelion (ω)162.23138358° ± 9.05e-06
Mean Anomaly (M)226.71104198° ± 1.15e-05
Mean Motion (n)0.3931881897°/day ± 1.39e-09
Perihelion dist (q)0.98542411 AU ± 1.15e-07
Aphelion dist (Q)2.70524013 AU ± 1.15e-07
Orbital Period2.50675455 yr ± 8.85e-09
Physical Parameters
H (abs. magnitude)17.12
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.240″
Uncertainty0
Orbit TypeApollo
MOID0.010214 AU
Observations Used200
Oppositions15
Arc Total2000-2025
First Observation Used2000-09-21
Last Observation Used2025-09-16
Observations (208)
Date Type RA Dec Mag Band Observatory
2020-08-17 10:19:16 C 22 31 49.417 -24 31 03.56 U F51
2020-08-17 10:41:01 C 22 31 47.760 -24 31 03.38 U F51
2020-08-17 11:02:50 C 22 31 46.090 -24 31 03.15 U F51
2020-09-11 07:26:50 C 21 47 44.165 -23 21 41.64 U F51
2020-09-11 07:43:14 C 21 47 43.065 -23 21 38.09 U F51
2020-09-11 07:59:36 C 21 47 41.958 -23 21 34.30 U F51
2020-09-14 08:00:23 C 21 43 05.858 -23 04 43.51 U F51
2020-09-14 08:17:07 C 21 43 04.785 -23 04 39.57 U F51
2020-09-14 08:33:52 C 21 43 03.715 -23 04 35.38 U F51
2021-07-19 11:33:38 C 05 10 52.72 +51 22 26.7 U I41
2021-07-19 11:36:23 C 05 10 53.39 +51 22 27.7 U I41
2021-07-19 11:37:05 C 05 10 53.55 +51 22 28.1 U I41
2021-07-19 11:40:31 C 05 10 54.35 +51 22 29.3 U I41
2023-07-01 13:38:17 C 00 25 10.329 +10 46 24.95 X F52
2023-07-01 13:51:56 C 00 25 10.545 +10 46 34.02 X F52
2023-07-01 14:05:35 C 00 25 10.757 +10 46 42.38 X F52
2023-07-01 14:19:15 C 00 25 10.981 +10 46 51.02 X F52
2023-07-29 11:55:23 C 00 27 19.527 +18 13 23.94 X F52
2023-07-29 12:06:27 C 00 27 19.385 +18 13 32.25 X F52
2023-07-29 12:17:28 C 00 27 19.217 +18 13 39.73 X F52
2023-07-29 12:28:29 C 00 27 19.037 +18 13 47.51 X F52
2023-08-03 11:22:48 C 00 25 14.252 +19 38 26.40 X F52
2023-08-03 11:38:32 C 00 25 13.897 +19 38 37.66 X F52
2023-08-03 11:54:11 C 00 25 13.554 +19 38 48.70 X F52
2023-09-05 22:41:51 C 23 41 54.64 +28 49 31.2 X C95
2023-09-05 23:22:34 C 23 41 50.81 +28 49 54.9 X C95
2023-09-13 08:13:09 C 23 25 03.345 +30 18 26.34 X F52
2023-09-13 08:30:48 C 23 25 01.538 +30 18 34.10 X F52
2023-09-13 08:48:24 C 23 24 59.731 +30 18 41.83 X F52
2023-09-18 07:08:32 C 23 12 45.129 +31 03 53.23 X F52
2023-09-18 07:24:06 C 23 12 43.450 +31 03 58.55 X F52
2023-09-18 07:39:42 C 23 12 41.777 +31 04 03.80 X F52
2023-09-18 07:55:17 C 23 12 40.095 +31 04 09.06 X F52
2023-09-24 05:43:02 C 22 57 27.155 +31 41 21.34 V G96
2023-09-24 05:51:20 C 22 57 26.240 +31 41 22.99 V G96
2023-09-24 05:59:38 C 22 57 25.330 +31 41 24.65 V G96
2023-09-24 06:07:56 C 22 57 24.412 +31 41 26.41 V G96
2023-09-25 04:01:58 C 22 55 02.870 +31 45 29.59 V 703
2023-09-25 04:09:27 C 22 55 01.999 +31 45 31.61 V 703
2023-09-25 04:16:56 C 22 55 01.218 +31 45 31.54 V 703
2023-09-25 04:24:25 C 22 55 00.368 +31 45 32.11 V 703
2023-10-04 03:51:57 C 22 32 17.725 +32 01 57.68 V 703
2023-10-04 03:59:49 C 22 32 17.005 +32 01 56.17 V 703
2023-10-04 04:07:42 C 22 32 16.210 +32 01 55.92 V 703
2023-10-04 04:15:35 C 22 32 15.374 +32 01 56.64 V 703
2023-10-06 05:47:20 C 22 27 19.013 +32 00 05.50 X F52
2023-10-06 06:22:40 C 22 27 15.436 +32 00 03.55 X F52
2023-10-06 06:40:21 C 22 27 13.660 +32 00 02.59 X F52
2023-10-08 02:52:35 C 22 22 56.986 +31 56 45.35 V 703
2023-10-08 03:00:08 C 22 22 56.226 +31 56 44.81 V 703