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
2021-11-05 13:53:57 S 04 34 47.326 +10 56 08.30 V C57
2021-11-05 13:53:57 s 1 -153630.93 8 +53805.598 5900.0 C57
2021-11-05 14:03:57 S 04 34 43.834 +10 55 48.43 V C57
2021-11-05 14:03:57 s 1 -153336.93 4 +52830.149 6650.0 C57
2021-11-05 14:13:57 S 04 34 40.894 +10 55 35.11 V C57
2021-11-05 14:13:57 s 1 -153038.55 6 +51853.191 1560.0 C57
2021-11-05 14:23:57 S 04 34 38.093 +10 55 18.91 V C57
2021-11-05 14:23:57 s 1 -152735.76 5 +50874.736 480.0 C57
2021-11-05 14:33:57 S 04 34 35.261 +10 54 58.68 V C57
2021-11-05 14:33:57 s 1 -152428.52 4 +49894.796 3290.0 C57
2021-11-05 14:43:57 S 04 34 32.294 +10 54 44.50 V C57
2021-11-05 14:43:57 s 1 -152116.79 2 +48913.384 9840.0 C57
2021-11-05 14:53:57 S 04 34 29.383 +10 54 24.62 V C57
2021-11-05 14:53:57 s 1 -151800.53 2 +47930.514 0.0 C57
2021-11-05 15:03:57 S 04 34 25.894 +10 54 06.41 V C57
2021-11-05 15:03:57 s 1 -151479.70 3 +46946.199 3630.0 C57
2021-11-05 15:33:57 S 04 34 17.414 +10 53 17.12 V C57
2021-11-05 15:33:57 s 1 -150489.40 3 +43984.730 3880.0 C57
2021-11-05 15:43:57 S 04 34 14.429 +10 53 02.22 V C57
2021-11-05 15:43:57 s 1 -150149.89 5 +42994.782 9940.0 C57
2021-11-05 15:53:57 S 04 34 11.650 +10 52 45.34 V C57
2021-11-05 15:53:57 s 1 -149805.61 4 +42003.465 8740.0 C57
2021-11-05 16:13:57 S 04 34 05.902 +10 52 07.57 V C57
2021-11-05 16:13:57 s 1 -149102.56 4 +40016.790 3960.0 C57
2021-11-05 16:33:57 S 04 34 00.163 +10 51 30.49 V C57
2021-11-05 16:33:57 s 1 -148379.90 7 +38024.843 8330.0 C57
2021-11-05 16:43:57 S 04 33 57.070 +10 51 12.74 V C57
2021-11-05 16:43:57 s 1 -148011.11 7 +37026.937 8560.0 C57
2021-11-05 16:53:57 S 04 33 53.938 +10 50 54.74 V C57
2021-11-05 16:53:57 s 1 -147637.29 3 +36027.770 600.0 C57
2021-11-05 17:03:57 S 04 33 51.334 +10 50 41.28 V C57
2021-11-05 17:03:57 s 1 -147258.39 0 +35027.360 4300.0 C57
2021-11-05 17:13:57 S 04 33 48.156 +10 50 22.02 V C57
2021-11-05 17:13:57 s 1 -146874.36 2 +34025.728 9510.0 C57
2021-11-05 17:23:57 S 04 33 45.730 +10 50 06.94 V C57
2021-11-05 17:23:57 s 1 -146485.16 4 +33022.895 6040.0 C57
2021-11-05 17:33:57 S 04 33 42.972 +10 49 49.30 V C57
2021-11-05 17:33:57 s 1 -146090.74 9 +32018.883 3750.0 C57
2021-11-05 17:43:57 S 04 33 39.888 +10 49 29.39 V C57
2021-11-05 17:43:57 s 1 -145691.06 8 +31013.714 2460.0 C57
2021-11-05 18:03:57 S 04 33 34.056 +10 48 58.25 V C57
2021-11-05 18:03:57 s 1 -144875.72 4 +28999.997 2230.0 C57
2021-11-05 18:13:57 S 04 33 31.135 +10 48 40.72 V C57
2021-11-05 18:13:57 s 1 -144459.96 3 +27991.497 2940.0 C57
2021-11-05 18:23:57 S 04 33 28.421 +10 48 22.86 V C57
2021-11-05 18:23:57 s 1 -144038.74 5 +26981.936 3970.0 C57
2021-11-05 18:43:57 S 04 33 22.853 +10 47 46.07 V C57
2021-11-05 18:43:57 s 1 -143179.73 5 +24959.736 6300.0 C57
2021-11-05 19:03:57 S 04 33 16.982 +10 47 16.84 V C57
2021-11-05 19:03:57 s 1 -142298.29 1 +22933.611 7790.0 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)