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
2004-12-05 02:59:02 C 05 40 16.65 +03 12 46.4 c 844
2004-12-05 03:01:03 C 05 40 16.20 +03 12 45.6 c 844
2004-12-05 03:04:20 C 05 40 15.45 +03 12 41.9 c 844
2004-12-07 06:13:43 C 05 29 12.45 +02 22 34.5 18.3 c 704
2004-12-07 06:34:02 C 05 29 07.82 +02 22 14.9 18.9 c 704
2004-12-07 06:52:06 C 05 29 03.70 +02 21 58.2 18.8 c 704
2004-12-07 07:11:07 C 05 28 59.36 +02 21 40.1 19.0 c 704
2004-12-07 07:31:31 C 05 28 54.72 +02 21 20.9 18.9 c 704
2004-12-08 02:15:33 C 05 24 45.40 +02 03 32.2 18.7 r 130
2004-12-08 02:22:15 C 05 24 43.85 +02 03 25.8 18.7 r 130
2004-12-08 02:28:47 C 05 24 42.34 +02 03 20.1 18.8 r 130
2004-12-11 09:00:24 C 05 07 03.21 +00 52 31.7 c 670
2004-12-12 06:53:06 C 05 02 06.04 +00 33 59.5 19.0 c 704
2004-12-12 07:14:06 C 05 02 01.09 +00 33 41.7 19.0 c 704
2004-12-12 07:35:10 C 05 01 56.17 +00 33 24.4 18.9 c 704
2004-12-12 07:56:09 C 05 01 51.23 +00 33 07.0 19.1 c 704
2004-12-12 08:17:05 C 05 01 46.30 +00 32 49.7 19.2 c 704
2004-12-12 22:17:11 C 04 58 36.79 +00 21 10.5 c 046
2004-12-12 22:19:12 C 04 58 36.31 +00 21 09.0 c 046
2004-12-12 22:19:58 C 04 58 36.12 +00 21 08.1 c 046
2004-12-12 22:21:38 C 04 58 35.75 +00 21 07.2 c 046
2004-12-12 22:23:14 C 04 58 35.34 +00 21 06.1 c 046
2004-12-13 20:26:24 C 04 53 36.32 +00 03 25.4 o 084
2004-12-14 21:26:53 C 04 47 58.95 -00 15 37.6 o 198
2004-12-14 21:28:27 C 04 47 58.59 -00 15 38.8 o 198
2004-12-14 21:29:30 C 04 47 58.36 -00 15 39.5 o 198
2004-12-14 21:45:41 C 04 47 54.70 -00 15 52.5 o 198
2004-12-14 21:47:15 C 04 47 54.35 -00 15 53.8 o 198
2004-12-14 22:08:02 C 04 47 49.59 -00 16 07.7 r 203
2004-12-14 22:50:13 C 04 47 39.84 -00 16 39.2 r 203
2004-12-15 20:29:57 C 04 42 50.80 -00 32 25.4 r 240
2004-12-15 20:32:03 C 04 42 50.30 -00 32 27.0 r 240
2004-12-15 20:33:47 C 04 42 49.93 -00 32 28.2 r 240
2004-12-15 20:35:30 C 04 42 49.55 -00 32 29.5 r 240
2004-12-15 20:53:15 C 04 42 45.59 -00 32 42.6 r 240
2004-12-17 23:39:32 C 04 31 38.25 -01 06 28.9 o 493
2004-12-18 00:42:40 C 04 31 24.20 -01 07 08.5 o 493
2004-12-18 21:33:01 C 04 26 57.56 -01 19 51.1 r 203
2004-12-18 22:31:39 C 04 26 44.73 -01 20 25.7 r 203
2004-12-19 06:28:46 C 04 25 03.84 -01 24 56.9 o 699
2004-12-19 06:52:06 C 04 24 58.73 -01 25 09.8 o 699
2004-12-19 07:15:26 C 04 24 53.64 -01 25 23.3 o 699
2004-12-19 07:38:46 C 04 24 48.50 -01 25 36.8 o 699
2004-12-20 04:27:00 C 04 20 29.88 -01 37 06.3 o 699
2004-12-20 04:57:20 C 04 20 23.47 -01 37 21.8 o 699
2004-12-20 05:27:42 C 04 20 16.90 -01 37 36.7 o 699
2004-12-20 05:58:03 C 04 20 10.38 -01 37 53.7 o 699
2004-12-31 19:38:42 C 03 31 49.96 -03 01 52.6 r J87
2004-12-31 19:52:45 C 03 31 47.77 -03 01 55.0 r J87
2004-12-31 20:01:26 C 03 31 46.50 -03 01 55.6 r J87
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)