2340 Hathor (1976 UA)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4499362759 ± 2.00e+00
Semi-major axis (a)0.8438607999 AU ± 3.00e+00
Inclination (i)5.86058780° ± 4.00e+00
Long. of Asc. Node (Ω)211.28370419° ± 5.00e+00
Arg. of Perihelion (ω)40.11847477° ± 6.00e+00
Mean Anomaly (M)201.97974796° ± 9.88e-06
Mean Motion (n)1.2714698219°/day ± 6.78e+00
Perihelion dist (q)0.46417721 AU ± 2.36e+00
Aphelion dist (Q)1.22354439 AU ± 4.67e+00
Orbital Period0.77518653 yr ± 4.13e+00
NGA Modelr2
A2-3.12283792e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.41
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual1.084″
Uncertainty0
Orbit TypeAten
MOID0.006333 AU
Observations Used1452
Oppositions15
Arc Total1976-2026
First Observation Used1976-10-22
Last Observation Used2026-01-18
Observations (2217)
Date Type RA Dec Mag Band Observatory
2026-01-09 06:21:30 C 09 24 51.454 -46 59 21.01 V W68
2026-01-09 06:22:09 C 09 24 51.408 -46 59 26.70 V W68
2026-01-12 23:13:50 C 09 25 54.262 -60 21 55.22 V M22
2026-01-12 23:55:51 C 09 25 53.220 -60 28 54.77 V M22
2026-01-12 23:57:09 C 09 25 53.220 -60 29 07.37 V M22
2026-01-12 23:58:27 C 09 25 53.174 -60 29 20.08 V M22
2026-01-13 00:03:04 C 09 25 53.059 -60 30 06.55 V M22
2026-01-13 00:06:27 C 09 25 52.946 -60 30 40.32 V M22
2026-01-13 00:14:22 C 09 25 52.788 -60 31 58.80 V M22
2026-01-17 05:05:06 C 09 29 16.706 -78 21 54.04 V W68
2026-01-17 05:39:44 C 09 29 16.402 -78 28 18.08 V W68
2026-01-17 05:51:12 C 09 29 15.994 -78 30 25.24 V W68
2026-01-17 06:45:49 C 09 29 14.806 -78 40 27.26 V W68
2026-01-18 21:48:46 C 09 39 22.310 -85 49 26.65 V M22
2026-01-18 22:00:33 C 09 39 27.360 -85 51 38.52 V M22
2026-01-18 22:05:10 C 09 39 29.760 -85 52 28.85 V M22
2026-01-18 22:25:56 C 09 39 39.202 -85 56 19.93 V M22
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-10-20 07:40:00 166355.453 2 Hz 8560 -14 -14
2014-10-20 08:35:00 41303.3259 1 Hz 2380 -1 -1
2014-10-20 08:40:00 49250902.97 3 us 8560 -14 -14
2014-10-20 10:20:00 49138106.93 0.3 us 2380 -1 -1
2014-10-21 07:36:00 17315.52 0.5 Hz 2380 -1 -1
2014-10-21 08:00:00 48261871.2 0.2 us 2380 -1 -1
2014-10-22 09:00:00 48227416.89 2 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)