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
2021-10-29 14:43:57 s 1 +101354.68 0 +336770.06 7670.0 C57
2021-10-29 14:53:57 S 05 32 53.086 +15 57 06.48 V C57
2021-10-29 14:53:57 s 1 +101031.51 5 +337051.12 8480.0 C57
2021-10-29 16:33:57 S 05 32 17.700 +15 54 38.05 V C57
2021-10-29 16:33:57 s 1 +97782.408 0 +339801.04 1070.0 C57
2021-10-29 17:13:57 S 05 32 03.744 +15 53 29.36 V C57
2021-10-29 17:13:57 s 1 +96474.089 0 +340870.18 4620.0 C57
2021-10-29 17:23:57 S 05 31 59.753 +15 53 12.37 V C57
2021-10-29 17:23:57 s 1 +96146.254 0 +341134.71 610.0 C57
2021-10-29 17:33:57 S 05 31 56.765 +15 52 45.66 V C57
2021-10-29 17:33:57 s 1 +95818.119 0 +341398.16 5660.0 C57
2021-10-29 17:53:57 S 05 31 48.950 +15 52 17.83 V C57
2021-10-29 17:53:57 s 1 +95160.956 0 +341921.75 2940.0 C57
2021-10-29 18:43:57 S 05 31 31.140 +15 50 58.13 V C57
2021-10-29 18:43:57 s 1 +93512.912 0 +343211.59 4920.0 C57
2021-10-29 19:13:57 S 05 31 20.237 +15 50 13.02 V C57
2021-10-29 19:13:57 s 1 +92520.620 0 +343972.38 5190.0 C57
2021-10-29 19:33:57 S 05 31 13.488 +15 49 41.05 V C57
2021-10-29 19:33:57 s 1 +91857.672 0 +344474.12 4230.0 C57
2021-10-29 19:43:57 S 05 31 10.217 +15 49 20.17 V C57
2021-10-29 19:43:57 s 1 +91525.776 0 +344723.35 7430.0 C57
2021-10-29 19:53:57 S 05 31 06.024 +15 49 11.17 V C57
2021-10-29 19:53:57 s 1 +91193.601 0 +344971.50 9750.0 C57
2021-10-29 21:23:57 S 05 30 34.154 +15 46 47.96 V C57
2021-10-29 21:23:57 s 1 +88191.690 0 +347155.88 1930.0 C57
2021-10-29 21:33:57 S 05 30 30.643 +15 46 35.18 V C57
2021-10-29 21:33:57 s 1 +87856.799 0 +347393.17 5740.0 C57
2021-10-29 22:33:57 S 05 30 09.245 +15 44 54.53 V C57
2021-10-29 22:33:57 s 1 +85841.958 0 +348794.13 1440.0 C57
2021-10-29 22:43:57 S 05 30 05.933 +15 44 26.23 V C57
2021-10-29 22:43:57 s 1 +85505.248 0 +349023.84 9570.0 C57
2021-10-29 22:53:57 S 05 30 02.522 +15 44 24.58 V C57
2021-10-29 22:53:57 s 1 +85168.284 0 +349252.47 6910.0 C57
2021-10-29 23:23:57 S 05 29 51.989 +15 43 41.56 V C57
2021-10-29 23:23:57 s 1 +84155.877 0 +349931.88 4230.0 C57
2021-10-29 23:33:57 S 05 29 47.695 +15 42 59.58 V C57
2021-10-29 23:33:57 s 1 +83817.908 0 +350156.20 8440.0 C57
2021-10-29 23:43:57 S 05 29 44.436 +15 43 02.14 V C57
2021-10-29 23:43:57 s 1 +83479.691 0 +350379.44 1890.0 C57
2021-10-30 00:13:57 S 05 29 33.797 +15 42 09.86 V C57
2021-10-30 00:13:57 s 1 +82463.568 0 +351042.69 7660.0 C57
2021-10-30 00:23:57 S 05 29 30.137 +15 41 58.31 V C57
2021-10-30 00:23:57 s 1 +82124.373 0 +351261.62 8080.0 C57
2021-10-30 00:43:57 S 05 29 23.858 +15 41 31.52 V C57
2021-10-30 00:43:57 s 1 +81445.262 0 +351696.25 6680.0 C57
2021-10-30 00:53:57 S 05 29 19.738 +15 41 07.01 V C57
2021-10-30 00:53:57 s 1 +81105.348 0 +351911.96 4870.0 C57
2021-10-30 01:03:57 S 05 29 15.326 +15 40 49.51 V C57
2021-10-30 01:03:57 s 1 +80765.197 0 +352126.60 2320.0 C57
2021-10-30 01:13:57 S 05 29 11.494 +15 40 37.99 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)