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
2019-01-06 11:44:38 s 1 -123520.23 2 - 4396.632 5230.0 C57
2019-01-08 08:59:36 C 05 19 15.29 -22 37 38.7 V T08
2019-01-08 09:11:34 C 05 19 10.24 -22 37 59.1 V T08
2019-01-08 09:22:52 C 05 19 05.46 -22 38 17.8 V T08
2019-01-08 09:34:51 C 05 19 00.42 -22 38 38.5 V T08
2019-01-09 05:20:58 C 05 10 56.21 -23 11 39.5 V 703
2019-01-09 05:28:45 C 05 10 52.84 -23 11 51.6 V 703
2019-01-09 05:44:22 C 05 10 46.16 -23 12 17.2 V 703
2019-01-10 08:48:41 C 04 59 29.24 -23 53 56.5 V T05
2019-01-10 09:00:41 C 04 59 24.01 -23 54 13.4 V T05
2019-01-10 09:11:55 C 04 59 19.12 -23 54 30.0 V T05
2019-01-10 09:23:50 C 04 59 13.88 -23 54 47.2 V T05
2019-01-11 06:21:40 C 04 50 25.370 -24 24 22.27 U F51
2019-01-11 06:37:28 C 04 50 18.377 -24 24 44.29 U F51
2019-01-11 07:09:08 C 04 50 04.359 -24 25 27.93 U F51
2019-01-12 08:49:49 C 04 39 04.82 -24 58 11.5 V T08
2019-01-12 09:02:28 C 04 38 59.15 -24 58 25.9 V T08
2019-01-12 09:15:46 C 04 38 53.27 -24 58 40.5 V T08
2019-01-12 09:29:07 C 04 38 47.29 -24 58 56.4 V T08
2019-01-14 08:14:00 C 04 18 43.23 -25 48 24.4 V T05
2019-01-14 08:25:15 C 04 18 38.21 -25 48 35.2 V T05
2019-01-14 08:36:38 C 04 18 33.11 -25 48 44.5 V T05
2019-01-14 08:48:00 C 04 18 28.05 -25 48 53.9 V T05
2019-01-16 07:25:58 C 03 58 32.07 -26 25 01.0 V T08
2019-01-16 07:47:56 C 03 58 22.42 -26 25 13.3 V T08
2019-01-16 07:49:55 C 03 58 21.48 -26 25 14.6 V T08
2019-01-16 07:59:13 C 03 58 17.38 -26 25 21.0 V T08
2019-01-16 08:01:12 C 03 58 16.55 -26 25 21.1 V T08
2019-01-17 01:19:56 S 03 50 58.459 -26 34 44.11 L C51
2019-01-17 04:28:15 S 03 49 39.086 -26 36 22.07 L C51
2019-01-17 06:02:30 S 03 48 59.436 -26 37 09.88 L C51
2019-01-24 06:13:48 C 02 42 28.70 -26 53 36.0 V T08
2019-01-24 06:22:26 C 02 42 25.41 -26 53 34.7 V T08
2019-01-24 06:30:25 C 02 42 22.40 -26 53 30.2 V T08
2019-01-24 06:39:43 C 02 42 18.88 -26 53 29.2 V T08
2021-10-20 02:49:24 C 06 40 33.49 +20 23 14.8 V A17
2021-10-20 03:01:35 C 06 40 30.15 +20 23 03.4 V A17
2021-10-20 03:14:03 C 06 40 26.72 +20 22 51.6 V A17
2021-10-21 09:03:56 S 06 31 29.018 +20 00 48.71 V C57
2021-10-21 09:03:56 s 1 -136595.08 8 +282121.21 1060.0 C57
2021-10-21 14:43:56 S 06 29 48.235 +19 53 38.15 V C57
2021-10-21 14:43:56 s 1 -145299.15 5 +265882.24 3630.0 C57
2021-10-21 18:13:56 S 06 28 44.998 +19 49 08.69 V C57
2021-10-21 18:13:56 s 1 -150268.32 8 +255091.41 1360.0 C57
2021-10-21 20:33:56 S 06 28 03.446 +19 46 18.44 V C57
2021-10-21 20:33:56 s 1 -153388.79 0 +247566.69 3650.0 C57
2021-10-22 06:43:56 S 06 25 02.299 +19 33 09.32 V C57
2021-10-22 06:43:56 s 1 -164886.72 3 +211576.83 7600.0 C57
2021-10-22 12:03:56 S 06 23 27.509 +19 26 07.15 V C57
2021-10-22 12:03:56 s 1 -169286.43 2 +190524.01 240.0 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)