2004 HA1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7193046000
Semi-major axis (a)2.7069923000 AU
Inclination (i)19.07857000°
Long. of Asc. Node (Ω)28.70577000°
Arg. of Perihelion (ω)259.26943000°
Mean Anomaly (M)291.29394000°
Mean Motion (n)0.2212959900°/day
Perihelion dist (q)0.75984030 AU
Aphelion dist (Q)4.65414430 AU
Orbital Period4.45379820 yr
Physical Parameters
H (abs. magnitude)21.70
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.620″
Uncertainty8
Orbit TypeApollo
MOID0.067314 AU
Observations Used65
Oppositions1
Arc Total
First Observation Used
Last Observation Used2004-04-25
Observations (66)
Date Type RA Dec Mag Band Observatory
2004-04-23 05:23:49 C 12 16 58.71 -03 52 13.6 c 691
2004-04-23 20:34:47 C 12 10 02.64 -04 46 46.6 r J87
2004-04-23 20:37:58 C 12 10 01.11 -04 46 58.3 r J87
2004-04-23 20:40:36 C 12 09 59.80 -04 47 07.8 r J87
2004-04-23 23:58:26 C 12 08 22.10 -04 59 29.2 r 170
2004-04-23 23:59:53 C 12 08 21.39 -04 59 34.5 r 170
2004-04-24 00:00:58 C 12 08 20.87 -04 59 38.7 r 170
2004-04-24 00:02:03 C 12 08 20.34 -04 59 42.9 r 170
2004-04-24 00:06:02 C 12 08 18.42 -04 59 57.8 r 170
2004-04-25 05:23:30 C 11 53 08.39 -06 58 16.8 d 703
2004-04-25 05:39:59 C 11 52 59.12 -06 59 26.4 d 703
2004-04-25 05:56:21 C 11 52 49.65 -07 00 37.1 d 703
2004-04-25 06:12:49 C 11 52 40.21 -07 01 47.3 d 703
2004-04-25 09:43:57 C 11 50 44.26 -07 15 52.1 r E14
2004-04-25 09:49:16 C 11 50 41.09 -07 16 15.6 r E14
2004-04-25 09:54:31 C 11 50 38.03 -07 16 39.1 r E14