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
2018-12-29 05:14:39 s 1 +46195.100 0 +340132.00 8120.0 C57
2018-12-29 10:14:38 S 06 42 31.790 -14 49 42.60 V C57
2018-12-29 10:14:38 s 1 +36705.687 0 +348868.12 4690.0 C57
2018-12-29 12:14:39 S 06 41 55.651 -14 54 08.53 V C57
2018-12-29 12:14:39 s 1 +32880.181 0 +352083.40 2450.0 C57
2018-12-29 13:14:38 S 06 41 37.918 -14 56 11.87 V C57
2018-12-29 13:14:38 s 1 +30962.114 0 +353632.18 2050.0 C57
2018-12-29 16:14:38 S 06 40 45.362 -15 02 34.73 V C57
2018-12-29 16:14:38 s 1 +25189.644 0 +358045.76 4110.0 C57
2018-12-29 16:44:39 S 06 40 36.554 -15 03 41.11 V C57
2018-12-29 16:44:39 s 1 +24225.218 0 +358747.70 8320.0 C57
2018-12-29 21:44:39 S 06 39 06.250 -15 14 28.50 V C57
2018-12-29 21:44:39 s 1 +14553.064 0 +365246.13 1850.0 C57
2018-12-29 23:14:39 S 06 38 38.167 -15 17 43.22 V C57
2018-12-29 23:14:39 s 1 +11644.032 0 +367013.13 8370.0 C57
2018-12-30 01:14:38 S 06 38 01.193 -15 22 00.48 V C57
2018-12-30 01:44:39 S 06 37 54.379 -15 23 01.54 V C57
2018-12-30 10:44:39 S 06 35 06.350 -15 42 10.62 V C57
2018-12-30 10:44:39 s 1 -10680.082 0 +377837.63 7980.0 C57
2018-12-30 13:44:39 S 06 34 10.310 -15 48 30.46 V C57
2018-12-30 13:44:39 s 1 -16488.039 0 +379886.42 6810.0 C57
2018-12-30 17:44:38 S 06 32 54.869 -15 56 41.32 V C57
2018-12-30 17:44:38 s 1 -24206.460 0 +382130.38 470.0 C57
2018-12-30 21:14:38 S 06 31 49.452 -16 04 06.42 V C57
2018-12-30 21:14:38 s 1 -30928.401 0 +383641.55 9240.0 C57
2018-12-31 02:14:39 S 06 30 12.202 -16 14 40.42 V C57
2018-12-31 02:14:39 s 1 -40465.377 0 +385076.50 8040.0 C57
2018-12-31 03:44:39 S 06 29 42.422 -16 17 57.88 V C57
2018-12-31 03:44:39 s 1 -43308.769 0 +385342.28 2980.0 C57
2018-12-31 04:14:38 S 06 29 33.245 -16 18 53.39 V C57
2018-12-31 04:14:38 s 1 -44254.566 0 +385414.08 9930.0 C57
2018-12-31 07:44:38 S 06 28 25.349 -16 26 10.64 V C57
2018-12-31 07:44:38 s 1 -50845.129 0 +385682.23 8950.0 C57
2018-12-31 08:14:39 S 06 28 16.481 -16 27 07.74 V C57
2018-12-31 08:14:39 s 1 -51782.115 0 +385687.15 8890.0 C57
2018-12-31 09:44:39 S 06 27 45.967 -16 30 22.10 V C57
2018-12-31 09:44:39 s 1 -54585.861 0 +385651.98 2250.0 C57
2018-12-31 16:14:38 S 06 25 37.181 -16 43 42.71 V C57
2018-12-31 16:14:38 s 1 -66598.946 0 +384637.91 5040.0 C57
2018-12-31 19:44:38 S 06 24 26.753 -16 51 06.41 V C57
2018-12-31 19:44:38 s 1 -72965.220 0 +383514.67 9350.0 C57
2018-12-31 20:14:39 S 06 24 16.999 -16 52 05.52 V C57
2018-12-31 20:14:39 s 1 -73868.293 0 +383321.34 4360.0 C57
2018-12-31 23:14:39 S 06 23 17.842 -16 58 11.53 V C57
2018-12-31 23:14:39 s 1 -79251.228 0 +381989.08 1080.0 C57
2018-12-31 23:44:38 S 06 23 07.934 -16 59 11.76 V C57
2018-12-31 23:44:38 s 1 -80142.281 0 +381738.34 3460.0 C57
2019-01-01 00:14:38 S 06 22 56.093 -17 00 14.33 V C57
2019-01-01 00:14:38 s 1 -81031.536 0 +381479.42 5000.0 C57
2019-01-01 00:44:39 S 06 22 45.588 -17 01 12.11 V 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)