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 01:13:57 s 1 +80424.810 0 +352340.15 9050.0 C57
2021-10-30 01:23:57 S 05 29 08.568 +15 40 24.92 V C57
2021-10-30 01:23:57 s 1 +80084.188 0 +352552.64 5060.0 C57
2021-10-30 01:53:57 S 05 28 57.595 +15 39 24.73 V C57
2021-10-30 01:53:57 s 1 +79060.928 0 +353183.67 8770.0 C57
2021-10-30 02:03:57 S 05 28 54.233 +15 39 11.63 V C57
2021-10-30 02:03:57 s 1 +78719.380 0 +353391.87 1920.0 C57
2021-10-30 02:13:57 S 05 28 50.458 +15 38 56.80 V C57
2021-10-30 02:13:57 s 1 +78377.605 0 +353599.00 4370.0 C57
2021-10-30 02:23:57 S 05 28 47.590 +15 38 44.02 V C57
2021-10-30 02:23:57 s 1 +78035.602 0 +353805.05 6120.0 C57
2021-10-30 02:33:57 S 05 28 43.493 +15 38 18.64 V C57
2021-10-30 02:33:57 s 1 +77693.374 0 +354010.04 7180.0 C57
2021-10-30 02:43:57 S 05 28 39.257 +15 38 16.30 V C57
2021-10-30 02:43:57 s 1 +77350.922 0 +354213.96 7540.0 C57
2021-10-30 02:53:57 S 05 28 36.403 +15 37 48.58 V C57
2021-10-30 02:53:57 s 1 +77008.246 0 +354416.81 7230.0 C57
2021-10-30 03:03:57 S 05 28 32.520 +15 37 27.98 V C57
2021-10-30 03:03:57 s 1 +76665.349 0 +354618.59 6230.0 C57
2021-10-30 04:43:57 S 05 27 57.094 +15 34 40.12 V C57
2021-10-30 04:43:57 s 1 +73224.455 0 +356577.71 9830.0 C57
2021-10-30 05:03:57 S 05 27 49.394 +15 34 12.29 V C57
2021-10-30 05:03:57 s 1 +72533.740 0 +356956.75 2810.0 C57
2021-10-30 06:33:57 S 05 27 17.254 +15 31 59.66 V C57
2021-10-30 06:33:57 s 1 +69415.491 0 +358609.83 5850.0 C57
2021-10-30 07:13:57 S 05 27 03.502 +15 30 40.46 V C57
2021-10-30 07:13:57 s 1 +68024.492 0 +359316.95 2880.0 C57
2021-10-30 08:23:57 S 05 26 38.335 +15 28 53.80 V C57
2021-10-30 08:23:57 s 1 +65582.984 0 +360513.67 910.0 C57
2021-10-30 08:33:57 S 05 26 33.643 +15 28 25.86 V C57
2021-10-30 08:33:57 s 1 +65233.462 0 +360680.40 9860.0 C57
2021-10-30 08:43:57 S 05 26 30.274 +15 28 15.06 V C57
2021-10-30 08:43:57 s 1 +64883.760 0 +360846.08 8270.0 C57
2021-10-30 08:53:57 S 05 26 25.915 +15 27 52.52 V C57
2021-10-30 08:53:57 s 1 +64533.879 0 +361010.70 6150.0 C57
2021-10-30 09:13:57 S 05 26 19.817 +15 27 25.16 V C57
2021-10-30 09:13:57 s 1 +63833.585 0 +361336.77 330.0 C57
2021-10-30 09:23:57 S 05 26 16.385 +15 27 12.53 V C57
2021-10-30 09:23:57 s 1 +63483.174 0 +361498.23 6630.0 C57
2021-10-30 09:33:57 S 05 26 13.378 +15 26 47.83 V C57
2021-10-30 09:33:57 s 1 +63132.588 0 +361658.63 2420.0 C57
2021-10-30 09:43:57 S 05 26 09.106 +15 26 44.74 V C57
2021-10-30 09:43:57 s 1 +62781.830 0 +361817.97 7700.0 C57
2021-10-30 10:03:57 S 05 26 02.174 +15 25 58.48 V C57
2021-10-30 10:03:57 s 1 +62079.798 0 +362133.50 6730.0 C57
2021-10-30 10:43:57 S 05 25 47.731 +15 24 50.44 V C57
2021-10-30 10:43:57 s 1 +60673.708 0 +362751.93 8820.0 C57
2021-10-30 10:53:57 S 05 25 43.426 +15 24 33.62 V C57
2021-10-30 10:53:57 s 1 +60321.770 0 +362903.91 620.0 C57
2021-10-30 11:03:57 S 05 25 40.613 +15 24 21.13 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)