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
2025-08-30 10:28:59 C 22 06 02.150 -25 14 32.74 X F51
2025-09-15 07:44:35 C 21 39 39.673 -23 58 40.12 X F51
2025-09-15 08:05:05 C 21 39 38.401 -23 58 34.97 X F51
2025-09-15 08:25:36 C 21 39 37.114 -23 58 29.45 X F51
2025-09-15 08:46:04 C 21 39 35.856 -23 58 23.98 X F51
2025-09-16 07:23:36 C 21 38 14.761 -23 52 22.62 X F51
2025-09-16 07:53:24 C 21 38 12.946 -23 52 14.65 X F51
2025-09-16 08:08:17 C 21 38 12.048 -23 52 10.77 X F51