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
2021-11-04 00:03:57 S 04 46 53.657 +12 05 54.67 V C57
2021-11-04 00:03:57 s 1 -152148.92 1 +231130.50 9200.0 C57
2021-11-04 00:13:57 S 04 46 49.738 +12 05 40.38 V C57
2021-11-04 00:13:57 s 1 -152336.64 7 +230533.30 4940.0 C57
2021-11-04 00:23:57 S 04 46 46.771 +12 05 15.07 V C57
2021-11-04 00:23:57 s 1 -152523.38 8 +229934.62 7010.0 C57
2021-11-04 00:33:57 S 04 46 43.721 +12 04 57.14 V C57
2021-11-04 00:33:57 s 1 -152709.13 9 +229334.47 5400.0 C57
2021-11-04 00:53:57 S 04 46 37.176 +12 04 25.68 V C57
2021-11-04 00:53:57 s 1 -153077.65 1 +228129.71 1060.0 C57
2021-11-04 01:03:57 S 04 46 33.931 +12 04 07.90 V C57
2021-11-04 01:03:57 s 1 -153260.40 2 +227525.11 8290.0 C57
2021-11-04 01:13:57 S 04 46 30.175 +12 03 42.48 V C57
2021-11-04 01:13:57 s 1 -153442.14 2 +226919.02 1770.0 C57
2021-11-04 01:43:57 S 04 46 20.239 +12 02 43.73 V C57
2021-11-04 01:43:57 s 1 -153981.24 7 +225091.82 9440.0 C57
2021-11-04 01:53:57 S 04 46 16.860 +12 02 26.95 V C57
2021-11-04 01:53:57 s 1 -154158.89 2 +224479.76 7690.0 C57
2021-11-04 02:03:57 S 04 46 13.404 +12 02 15.90 V C57
2021-11-04 02:03:57 s 1 -154335.50 1 +223866.21 2080.0 C57
2021-11-04 02:13:57 S 04 46 09.936 +12 01 52.57 V C57
2021-11-04 02:13:57 s 1 -154511.06 6 +223251.16 2600.0 C57
2021-11-04 02:23:57 S 04 46 06.490 +12 01 29.53 V C57
2021-11-04 02:23:57 s 1 -154685.58 4 +222634.61 9220.0 C57
2021-11-04 02:33:57 S 04 46 02.909 +12 01 11.68 V C57
2021-11-04 02:33:57 s 1 -154859.04 8 +222016.56 1930.0 C57
2021-11-04 03:13:57 S 04 45 49.471 +11 59 55.72 V C57
2021-11-04 03:13:57 s 1 -155542.25 8 +219529.27 3200.0 C57
2021-11-04 03:23:57 S 04 45 46.217 +11 59 39.23 V C57
2021-11-04 03:23:57 s 1 -155710.37 1 +218903.67 6030.0 C57
2021-11-04 03:33:57 S 04 45 42.648 +11 59 17.99 V C57
2021-11-04 03:33:57 s 1 -155877.39 7 +218276.55 4820.0 C57
2021-11-04 03:43:57 S 04 45 39.929 +11 59 02.69 V C57
2021-11-04 03:43:57 s 1 -156043.32 9 +217647.92 9550.0 C57
2021-11-04 03:53:57 S 04 45 36.946 +11 58 43.10 V C57
2021-11-04 03:53:57 s 1 -156208.16 3 +217017.76 210.0 C57
2021-11-04 04:13:57 S 04 45 29.551 +11 58 02.93 V C57
2021-11-04 04:13:57 s 1 -156534.51 0 +215752.89 9180.0 C57
2021-11-04 04:23:57 S 04 45 25.884 +11 57 45.00 V C57
2021-11-04 04:23:57 s 1 -156696.01 2 +215118.16 7460.0 C57
2021-11-04 04:33:57 S 04 45 23.047 +11 57 26.68 V C57
2021-11-04 04:33:57 s 1 -156856.39 1 +214481.90 1580.0 C57
2021-11-04 04:43:57 S 04 45 19.493 +11 57 07.27 V C57
2021-11-04 04:43:57 s 1 -157015.64 1 +213844.11 1510.0 C57
2021-11-04 04:53:57 S 04 45 16.555 +11 56 50.17 V C57
2021-11-04 04:53:57 s 1 -157173.75 7 +213204.79 7230.0 C57
2021-11-04 05:03:57 S 04 45 13.054 +11 56 30.23 V C57
2021-11-04 05:03:57 s 1 -157330.73 3 +212563.94 8710.0 C57
2021-11-04 05:23:57 S 04 45 06.259 +11 55 55.20 V C57
2021-11-04 05:23:57 s 1 -157641.23 7 +211277.61 8900.0 C57
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)