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
2023-10-08 03:07:41 C 22 22 55.484 +31 56 44.38 V 703
2023-10-09 05:06:59 C 22 20 28.219 +31 54 10.12 V G96
2023-10-09 05:15:08 C 22 20 27.452 +31 54 09.40 V G96
2023-10-09 05:23:18 C 22 20 26.682 +31 54 08.14 V G96
2023-10-10 05:48:30 C 22 18 11.641 +31 51 19.97 X F52
2023-10-10 06:04:15 C 22 18 10.169 +31 51 18.20 X F52
2023-10-10 06:35:52 C 22 18 07.204 +31 51 14.32 X F52
2023-10-22 02:29:56 C 21 55 48.130 +30 56 28.43 V G96
2023-10-22 02:39:58 C 21 55 47.449 +30 56 26.02 V G96
2023-10-22 02:50:00 C 21 55 46.798 +30 56 23.75 V G96
2023-10-22 07:12:40 C 21 55 29.658 +30 55 21.55 X F51
2023-10-22 07:25:02 C 21 55 28.831 +30 55 18.60 X F51
2023-10-22 07:39:22 C 21 55 27.887 +30 55 15.05 X F51
2023-10-23 02:54:28 C 21 54 15.023 +30 50 32.60 V G96
2023-10-23 03:02:39 C 21 54 14.515 +30 50 30.34 V G96
2023-10-23 03:19:00 C 21 54 13.432 +30 50 25.69 V G96
2023-11-03 02:50:41 C 21 41 21.682 +29 43 53.98 V G96
2023-11-03 02:58:10 C 21 41 21.390 +29 43 52.18 V G96
2023-11-03 03:05:40 C 21 41 21.124 +29 43 50.41 V G96
2023-11-03 03:13:09 C 21 41 20.832 +29 43 48.43 V G96
2023-11-09 15:28:33 S 21 36 57.95 +29 07 19.4 L C51
2023-11-09 17:01:31 S 21 36 55.94 +29 07 00.7 L C51
2023-11-09 17:01:42 S 21 36 56.04 +29 06 58.1 L C51
2023-11-09 18:34:40 S 21 36 53.99 +29 06 39.8 L C51
2023-11-09 20:07:49 S 21 36 52.15 +29 06 18.3 L C51
2023-11-10 00:47:05 S 21 36 46.53 +29 05 19.1 L C51
2024-01-01 01:35:58 C 22 07 43.295 +29 42 13.50 V G96
2024-01-01 01:44:50 C 22 07 43.795 +29 42 15.98 V G96
2024-01-01 01:53:42 C 22 07 44.353 +29 42 18.79 V G96
2024-01-01 02:02:34 C 22 07 44.854 +29 42 21.49 V G96
2024-05-03 03:11:29 C 06 33 42.793 +26 41 05.89 V G96
2024-05-03 03:17:35 C 06 33 43.931 +26 40 53.29 V G96
2024-05-03 03:23:41 C 06 33 45.029 +26 40 42.31 V G96
2024-05-03 03:29:47 C 06 33 46.105 +26 40 30.79 V G96
2024-05-15 03:21:39 C 07 21 07.074 +17 13 07.25 V G96
2024-05-15 03:32:28 C 07 21 08.665 +17 12 45.25 V G96
2024-05-15 03:37:52 C 07 21 09.490 +17 12 34.63 V G96
2025-07-26 13:13:13 C 23 04 23.091 -25 05 58.92 X F51
2025-07-26 13:27:15 C 23 04 22.341 -25 06 00.04 X F51
2025-07-26 13:41:19 C 23 04 21.575 -25 06 01.26 X F51
2025-07-26 13:55:22 C 23 04 20.832 -25 06 02.60 X F51
2025-07-27 11:23:35 C 23 03 13.050 -25 08 03.16 X F52
2025-07-27 11:37:15 C 23 03 12.307 -25 08 04.64 X F52
2025-07-27 12:04:36 C 23 03 10.808 -25 08 07.20 X F52
2025-08-17 10:40:57 C 22 29 55.836 -25 35 25.78 X F51
2025-08-17 10:55:58 C 22 29 54.678 -25 35 25.56 X F51
2025-08-17 11:10:54 C 22 29 53.528 -25 35 25.50 X F51
2025-08-30 09:40:57 C 22 06 05.845 -25 14 38.81 X F51
2025-08-30 09:56:52 C 22 06 04.619 -25 14 36.83 X F51
2025-08-30 10:13:01 C 22 06 03.371 -25 14 34.71 X F51