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
2021-11-04 05:43:57 S 04 44 59.712 +11 55 13.37 V C57
2021-11-04 05:43:57 s 1 -157947.10 4 +209985.11 1880.0 C57
2021-11-04 05:53:57 S 04 44 56.290 +11 54 55.55 V C57
2021-11-04 05:53:57 s 1 -158098.28 2 +209336.55 1870.0 C57
2021-11-04 06:03:57 S 04 44 52.685 +11 54 37.19 V C57
2021-11-04 06:03:57 s 1 -158248.28 3 +208686.43 7480.0 C57
2021-11-04 06:13:57 S 04 44 49.462 +11 54 19.80 V C57
2021-11-04 06:13:57 s 1 -158397.09 9 +208034.77 8710.0 C57
2021-11-04 06:23:57 S 04 44 46.277 +11 53 58.09 V C57
2021-11-04 06:23:57 s 1 -158544.72 4 +207381.55 5520.0 C57
2021-11-04 06:33:57 S 04 44 43.056 +11 53 43.40 V C57
2021-11-04 06:33:57 s 1 -158691.15 1 +206726.78 7880.0 C57
2021-11-04 06:43:57 S 04 44 39.254 +11 53 23.93 V C57
2021-11-04 06:43:57 s 1 -158836.37 4 +206070.45 5790.0 C57
2021-11-04 06:53:57 S 04 44 36.046 +11 53 04.60 V C57
2021-11-04 06:53:57 s 1 -158980.38 7 +205412.56 9210.0 C57
2021-11-04 07:03:57 S 04 44 33.065 +11 52 49.94 V C57
2021-11-04 07:03:57 s 1 -159123.18 2 +204753.10 8120.0 C57
2021-11-04 07:13:57 S 04 44 29.700 +11 52 27.91 V C57
2021-11-04 07:13:57 s 1 -159264.75 3 +204092.09 2490.0 C57
2021-11-04 07:23:57 S 04 44 26.316 +11 52 14.16 V C57
2021-11-04 07:23:57 s 1 -159405.09 3 +203429.50 2300.0 C57
2021-11-04 07:33:57 S 04 44 23.376 +11 51 49.32 V C57
2021-11-04 07:33:57 s 1 -159544.19 5 +202765.35 7530.0 C57
2021-11-04 07:43:57 S 04 44 19.428 +11 51 24.88 V C57
2021-11-04 07:43:57 s 1 -159682.05 3 +202099.63 8140.0 C57
2021-11-04 07:53:57 S 04 44 16.553 +11 51 10.58 V C57
2021-11-04 07:53:57 s 1 -159818.66 0 +201432.33 4130.0 C57
2021-11-04 08:03:57 S 04 44 12.710 +11 50 53.45 V C57
2021-11-04 08:03:57 s 1 -159954.00 8 +200763.46 5450.0 C57
2021-11-04 08:13:57 S 04 44 10.030 +11 50 38.76 V C57
2021-11-04 08:13:57 s 1 -160088.09 1 +200093.01 2080.0 C57
2021-11-04 08:23:57 S 04 44 06.264 +11 50 16.33 V C57
2021-11-04 08:23:57 s 1 -160220.90 1 +199420.98 4010.0 C57
2021-11-04 08:33:57 S 04 44 02.928 +11 49 57.50 V C57
2021-11-04 08:33:57 s 1 -160352.43 3 +198747.37 1200.0 C57
2021-11-04 08:43:57 S 04 44 00.079 +11 49 35.65 V C57
2021-11-04 08:43:57 s 1 -160482.67 7 +198072.18 3620.0 C57
2021-11-04 08:53:57 S 04 43 56.834 +11 49 24.06 V C57
2021-11-04 08:53:57 s 1 -160611.62 8 +197395.40 1260.0 C57
2021-11-04 09:03:57 S 04 43 53.292 +11 48 55.30 V C57
2021-11-04 09:03:57 s 1 -160739.27 7 +196717.03 4080.0 C57
2021-11-04 09:13:57 S 04 43 49.793 +11 48 46.76 V C57
2021-11-04 09:13:57 s 1 -160865.61 9 +196037.06 2060.0 C57
2021-11-04 09:23:57 S 04 43 46.152 +11 48 20.63 V C57
2021-11-04 09:23:57 s 1 -160990.64 4 +195355.51 5160.0 C57
2021-11-04 09:33:57 S 04 43 43.466 +11 48 04.79 V C57
2021-11-04 09:33:57 s 1 -161114.34 6 +194672.36 3380.0 C57
2021-11-04 09:43:57 S 04 43 39.350 +11 47 44.74 V C57
2021-11-04 09:43:57 s 1 -161236.71 8 +193987.61 6670.0 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)