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
2021-10-30 11:03:57 s 1 +59969.668 0 +363054.83 1940.0 C57
2021-10-30 11:13:57 S 05 25 37.082 +15 24 03.31 V C57
2021-10-30 11:13:57 s 1 +59617.403 0 +363204.71 2780.0 C57
2021-10-30 11:23:57 S 05 25 33.434 +15 23 45.96 V C57
2021-10-30 11:23:57 s 1 +59264.977 0 +363353.53 3150.0 C57
2021-10-30 11:33:57 S 05 25 29.573 +15 23 35.66 V C57
2021-10-30 11:33:57 s 1 +58912.391 0 +363501.30 3050.0 C57
2021-10-30 13:13:57 S 05 24 53.040 +15 20 53.38 V C57
2021-10-30 13:13:57 s 1 +55377.953 0 +364921.29 7160.0 C57
2021-10-30 13:23:57 S 05 24 50.143 +15 20 35.34 V C57
2021-10-30 13:23:57 s 1 +55023.677 0 +365057.52 2170.0 C57
2021-10-30 13:43:57 S 05 24 43.262 +15 19 52.28 V C57
2021-10-30 13:43:57 s 1 +54314.686 0 +365326.84 920.0 C57
2021-10-30 13:45:03 C 05 24 43.68 +15 03 56.9 V T08
2021-10-30 13:53:57 S 05 24 39.526 +15 19 42.49 V C57
2021-10-30 13:53:57 s 1 +53959.973 0 +365459.93 4670.0 C57
2021-10-30 14:25:23 C 05 24 29.67 +15 02 53.8 V T08
2021-10-30 14:33:57 S 05 24 25.241 +15 18 34.16 V C57
2021-10-30 14:33:57 s 1 +52539.698 0 +365981.83 5630.0 C57
2021-10-30 14:37:45 C 05 24 25.36 +15 02 33.5 V T08
2021-10-30 14:53:57 S 05 24 18.437 +15 17 58.81 V C57
2021-10-30 14:53:57 s 1 +51828.723 0 +366236.50 8720.0 C57
2021-10-30 15:03:57 S 05 24 14.604 +15 17 41.68 V C57
2021-10-30 15:03:57 s 1 +51473.029 0 +366362.27 9680.0 C57
2021-10-30 15:33:57 S 05 24 02.844 +15 16 46.96 V C57
2021-10-30 15:33:57 s 1 +50405.139 0 +366733.30 300.0 C57
2021-10-30 15:43:57 S 05 24 00.209 +15 16 33.92 V C57
2021-10-30 15:43:57 s 1 +50048.910 0 +366854.89 9750.0 C57
2021-10-30 15:53:57 S 05 23 56.477 +15 16 21.97 V C57
2021-10-30 15:53:57 s 1 +49692.549 0 +366975.44 8840.0 C57
2021-10-30 16:23:57 S 05 23 44.729 +15 15 25.49 V C57
2021-10-30 16:23:57 s 1 +48622.691 0 +367330.81 3930.0 C57
2021-10-30 16:33:57 S 05 23 41.818 +15 15 02.41 V C57
2021-10-30 16:33:57 s 1 +48265.816 0 +367447.18 1590.0 C57
2021-10-30 16:43:57 S 05 23 38.081 +15 14 53.27 V C57
2021-10-30 16:43:57 s 1 +47908.816 0 +367562.51 8900.0 C57
2021-10-30 17:13:57 S 05 23 26.926 +15 13 55.06 V C57
2021-10-30 17:13:57 s 1 +46837.072 0 +367902.24 8760.0 C57
2021-10-30 17:33:57 S 05 23 20.282 +15 13 25.79 V C57
2021-10-30 17:33:57 s 1 +46121.967 0 +368123.51 330.0 C57
2021-10-30 17:43:57 S 05 23 16.418 +15 13 08.98 V C57
2021-10-30 17:43:57 s 1 +45764.235 0 +368232.59 5620.0 C57
2021-10-30 17:53:57 S 05 23 13.236 +15 12 54.58 V C57
2021-10-30 17:53:57 s 1 +45406.385 0 +368340.62 590.0 C57
2021-10-30 18:03:57 S 05 23 09.780 +15 12 33.41 V C57
2021-10-30 18:03:57 s 1 +45048.418 0 +368447.61 5250.0 C57
2021-10-30 18:33:57 S 05 22 59.045 +15 11 54.38 V C57
2021-10-30 18:33:57 s 1 +43973.826 0 +368762.34 7330.0 C57
2021-10-30 18:43:57 S 05 22 54.739 +15 11 33.25 V C57
2021-10-30 18:43:57 s 1 +43615.402 0 +368865.17 750.0 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)