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
2014-11-23 04:10:28 C 01 08 53.16 -03 21 07.7 R G45
2014-11-23 04:10:34 C 01 08 53.16 -03 21 07.6 R G45
2014-11-23 04:18:10 C 01 08 52.94 -03 21 08.0 R G45
2014-11-23 04:24:09 C 01 08 52.76 -03 21 08.2 R G45
2014-11-24 03:46:19 C 01 08 26.10 -03 22 31.2 R G45
2014-11-24 03:52:18 C 01 08 25.99 -03 22 31.0 R G45
2014-11-24 04:06:28 C 01 08 25.63 -03 22 31.7 R G45
2014-11-24 04:09:18 C 01 08 25.72 -03 22 30.9 q G96
2014-11-24 04:14:04 C 01 08 25.39 -03 22 32.2 R G45
2014-11-24 04:19:39 C 01 08 25.47 -03 22 31.3 q G96
2014-11-24 04:20:02 C 01 08 25.29 -03 22 31.8 R G45
2014-11-24 04:30:00 C 01 08 25.19 -03 22 31.8 q G96
2014-11-24 04:40:22 C 01 08 24.92 -03 22 32.3 q G96
2014-11-26 03:47:19 C 01 07 47.74 -03 23 13.6 R G45
2014-11-26 03:49:33 C 01 07 47.68 -03 23 14.2 R G45
2014-11-26 03:55:30 C 01 07 47.61 -03 23 13.9 R G45
2014-11-26 04:03:07 C 01 07 47.45 -03 23 14.4 R G45
2014-11-26 04:09:05 C 01 07 47.36 -03 23 14.1 R G45
2014-12-06 05:56:07 C 01 09 02.445 -02 55 00.37 L F51
2014-12-06 06:17:07 C 01 09 02.659 -02 54 56.11 L F51
2014-12-06 06:38:12 C 01 09 02.894 -02 54 51.88 L F51
2014-12-06 06:59:17 C 01 09 03.103 -02 54 47.59 L F51
2018-11-10 10:50:47 C 08 05 10.45 +10 57 29.5 V G96
2018-11-10 11:02:04 C 08 05 10.71 +10 57 21.2 V G96
2018-11-10 11:09:37 C 08 05 10.86 +10 57 15.8 V G96
2018-11-10 11:17:12 C 08 05 11.06 +10 57 09.9 V G96
2018-11-13 13:27:21 C 08 07 05.130 +10 02 12.96 U F52
2018-11-13 13:45:02 C 08 07 05.445 +10 01 59.53 U F52
2018-11-13 14:02:41 C 08 07 05.751 +10 01 46.24 U F52
2018-11-13 14:20:24 C 08 07 06.057 +10 01 32.75 U F52
2018-12-04 09:34:26 C 08 04 24.31 +02 11 54.1 o 691
2018-12-04 09:51:21 C 08 04 23.52 +02 11 33.8 o 691
2018-12-04 10:07:47 C 08 04 22.66 +02 11 14.7 o 691
2018-12-16 11:29:41 C 07 41 27.27 -04 31 51.4 V T08
2018-12-16 11:35:18 C 07 41 26.55 -04 32 02.9 V T08
2018-12-16 11:46:59 C 07 41 25.07 -04 32 20.8 V T08
2018-12-16 11:53:21 C 07 41 24.19 -04 32 31.1 V T08
2018-12-27 13:14:39 S 06 54 48.461 -13 11 20.11 V C57
2018-12-27 13:14:39 s 1 +113015.39 2 +229719.93 5330.0 C57
2018-12-27 16:14:39 S 06 54 02.376 -13 18 09.07 V C57
2018-12-27 16:14:39 s 1 +108975.40 9 +240832.60 9630.0 C57
2018-12-27 17:44:39 S 06 53 39.869 -13 21 21.74 V C57
2018-12-27 17:44:39 s 1 +106866.70 5 +246195.14 4500.0 C57
2018-12-27 18:14:39 S 06 53 32.177 -13 22 28.85 V C57
2018-12-27 18:14:39 s 1 +106151.50 5 +247954.49 9720.0 C57
2018-12-27 19:44:39 S 06 53 08.849 -13 25 36.70 V C57
2018-12-27 19:44:39 s 1 +103970.65 7 +253149.16 6890.0 C57
2018-12-27 22:44:39 S 06 52 21.763 -13 32 15.61 V C57
2018-12-27 22:44:39 s 1 +99460.257 0 +263170.10 2190.0 C57
2018-12-29 05:14:39 S 06 43 59.966 -14 38 43.55 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)