2135 Aristaeus (1977 HA)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5030865165 ± 6.35e-07
Semi-major axis (a)1.5996188849 AU ± 3.51e-08
Inclination (i)23.07237967° ± 2.13e-05
Long. of Asc. Node (Ω)191.10909747° ± 1.72e-04
Arg. of Perihelion (ω)290.98022362° ± 7.90e-05
Mean Anomaly (M)37.17955915° ± 3.73e-04
Mean Motion (n)0.4871778025°/day ± 1.60e-08
Perihelion dist (q)0.79487219 AU ± 1.02e-06
Aphelion dist (Q)2.40436558 AU ± 1.02e-06
Orbital Period2.02313463 yr ± 6.66e-08
Physical Parameters
H (abs. magnitude)18.05
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.388″
Uncertainty0
Orbit TypeApollo
MOID0.009340 AU
Observations Used59
Oppositions22
Arc Total1977-2020
First Observation Used1977-04-17
Last Observation Used2020-05-30
Observations (62)
Date Type RA Dec Mag Band Observatory
2016-06-13 08:56:02 C 20 37 30.27 +15 00 01.6 u H21
2018-05-23 07:59:10 C 20 36 25.79 +11 41 18.9 u H21
2018-05-23 08:19:39 C 20 36 25.72 +11 41 28.7 u H21
2018-05-23 08:42:28 C 20 36 25.68 +11 41 39.0 u H21
2018-06-06 07:34:19 C 20 33 12.25 +14 02 18.6 u H21
2018-06-06 07:58:54 C 20 33 11.74 +14 02 27.8 u H21
2018-06-06 08:32:15 C 20 33 11.11 +14 02 40.4 u H21
2018-06-09 08:04:59 C 20 31 41.93 +14 28 49.3 u H21
2018-06-09 08:21:24 C 20 31 41.55 +14 28 55.2 u H21
2020-05-30 08:20:08 C 20 27 45.16 +13 06 31.2 u H21
2020-05-30 08:24:31 C 20 27 45.10 +13 06 33.1 u H21
2020-05-30 08:36:12 C 20 27 44.93 +13 06 38.2 u H21