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 18:53:57 S 05 22 50.974 +15 11 08.20 V C57
2021-10-30 18:53:57 s 1 +43256.866 0 +368966.95 3870.0 C57
2021-10-30 19:13:57 S 05 22 43.733 +15 10 42.46 V C57
2021-10-30 19:13:57 s 1 +42539.464 0 +369167.41 9210.0 C57
2021-10-30 19:23:57 S 05 22 40.433 +15 10 29.32 V C57
2021-10-30 19:23:57 s 1 +42180.599 0 +369266.07 1450.0 C57
2021-10-30 19:53:57 S 05 22 29.354 +15 09 34.99 V C57
2021-10-30 19:53:57 s 1 +41103.366 0 +369555.83 6480.0 C57
2021-10-30 20:03:57 S 05 22 25.685 +15 09 04.07 V C57
2021-10-30 20:03:57 s 1 +40744.079 0 +369650.34 7600.0 C57
2021-10-30 20:13:57 S 05 22 22.174 +15 08 58.81 V C57
2021-10-30 20:13:57 s 1 +40384.689 0 +369743.81 8450.0 C57
2021-10-30 20:23:57 S 05 22 19.711 +15 08 42.68 V C57
2021-10-30 20:23:57 s 1 +40025.196 0 +369836.24 9040.0 C57
2021-10-30 20:33:57 S 05 22 15.365 +15 08 24.22 V C57
2021-10-30 20:33:57 s 1 +39665.603 0 +369927.64 9360.0 C57
2021-10-30 20:43:57 S 05 22 11.390 +15 08 06.97 V C57
2021-10-30 20:43:57 s 1 +39305.910 0 +370017.99 9430.0 C57
2021-10-30 21:03:57 S 05 22 04.961 +15 07 34.10 V C57
2021-10-30 21:03:57 s 1 +38586.228 0 +370195.58 8790.0 C57
2021-10-30 21:13:57 S 05 22 00.434 +15 07 13.62 V C57
2021-10-30 21:13:57 s 1 +38226.242 0 +370282.82 8100.0 C57
2021-10-30 21:23:57 S 05 21 56.746 +15 06 56.81 V C57
2021-10-30 21:23:57 s 1 +37866.159 0 +370369.02 7170.0 C57
2021-10-30 21:33:57 S 05 21 53.789 +15 06 41.22 V C57
2021-10-30 21:33:57 s 1 +37505.983 0 +370454.18 5990.0 C57
2021-10-30 21:53:57 S 05 21 46.236 +15 05 58.92 V C57
2021-10-30 21:53:57 s 1 +36785.350 0 +370621.39 2940.0 C57
2021-10-30 22:03:57 S 05 21 43.109 +15 05 48.73 V C57
2021-10-30 22:03:57 s 1 +36424.896 0 +370703.44 1060.0 C57
2021-10-30 22:33:57 S 05 21 32.086 +15 04 55.38 V C57
2021-10-30 22:33:57 s 1 +35342.995 0 +370943.37 4100.0 C57
2021-10-30 23:03:57 S 05 21 21.444 +15 04 11.96 V C57
2021-10-30 23:03:57 s 1 +34260.310 0 +371173.96 5200.0 C57
2021-10-30 23:13:57 S 05 21 18.055 +15 03 53.96 V C57
2021-10-30 23:13:57 s 1 +33899.246 0 +371248.75 1820.0 C57
2021-10-31 00:13:57 S 05 20 55.790 +15 02 02.15 V C57
2021-10-31 00:13:57 s 1 +31731.152 0 +371675.73 7470.0 C57
2021-10-31 00:23:57 S 05 20 52.445 +15 01 53.69 V C57
2021-10-31 00:23:57 s 1 +31369.528 0 +371743.27 2760.0 C57
2021-10-31 00:33:57 S 05 20 49.049 +15 01 27.37 V C57
2021-10-31 00:33:57 s 1 +31007.828 0 +371809.77 7880.0 C57
2021-10-31 00:43:57 S 05 20 45.617 +15 01 09.30 V C57
2021-10-31 00:43:57 s 1 +30646.054 0 +371875.24 2830.0 C57
2021-10-31 00:53:57 S 05 20 41.194 +15 00 59.90 V C57
2021-10-31 00:53:57 s 1 +30284.206 0 +371939.67 7610.0 C57
2021-10-31 01:03:57 S 05 20 37.886 +15 00 38.02 V C57
2021-10-31 01:03:57 s 1 +29922.286 0 +372003.07 2230.0 C57
2021-10-31 01:13:57 S 05 20 33.737 +15 00 18.65 V C57
2021-10-31 01:13:57 s 1 +29560.294 0 +372065.43 6690.0 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)