3122 Florence (1981 ET3)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4232384908 ± 1.63e-09
Semi-major axis (a)1.7688776780 AU ± 6.61e-10
Inclination (i)22.14276824° ± 7.42e-07
Long. of Asc. Node (Ω)336.04036925° ± 3.76e-07
Arg. of Perihelion (ω)27.88474334° ± 1.08e-06
Mean Anomaly (M)168.25752840° ± 7.68e-07
Mean Motion (n)0.4189532598°/day ± 2.35e-10
Perihelion dist (q)1.02022056 AU ± 2.90e-09
Aphelion dist (Q)2.51753480 AU ± 3.03e-09
Orbital Period2.35259247 yr ± 1.32e-09
Physical Parameters
H (abs. magnitude)14.08
G (slope)0.15
Alternative Designations

1983 CN1

Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.362″
Uncertainty0
Orbit TypeAmor
MOID0.042563 AU
Observations Used9413
Radar Obs Used6
Gaia Obs Used88
Oppositions22
Arc Total1979-2026
First Observation Used1979-03-09
Last Observation Used2026-04-05
Observations (12205)
Date Type RA Dec Mag Band Observatory
2016-03-10 07:37:40 C 10 01 40.150 +11 04 43.88 L F51
2016-03-10 07:52:17 C 10 01 39.270 +11 04 43.32 L F51
2016-03-10 08:06:52 C 10 01 38.387 +11 04 42.78 L F51
2016-03-13 10:36:02 C 09 57 25.42 +11 01 21.4 L T05
2016-03-13 11:07:51 C 09 57 23.64 +11 01 20.0 L T05
2016-03-13 11:22:03 C 09 57 22.87 +11 01 19.3 L T05
2016-03-13 11:39:52 C 09 57 21.88 +11 01 18.6 L T05
2016-03-13 11:53:56 C 09 57 21.04 +11 01 17.7 L T05
2016-03-14 22:23:41 C 09 55 30.95 +10 59 22.3 q 168
2016-03-14 22:27:27 C 09 55 30.77 +10 59 21.7 q 168
2016-03-14 23:01:52 C 09 55 28.94 +10 59 19.8 q 168
2016-03-15 20:02:36 C 09 54 24.16 +10 58 06.5 q 168
2016-03-15 21:51:27 C 09 54 18.55 +10 58 00.1 q 168
2016-03-15 22:51:42 C 09 54 15.47 +10 57 55.8 q 168
2016-03-15 22:55:26 C 09 54 15.25 +10 57 55.7 q 168
2016-03-16 05:34:26 C 09 53 55.37 +10 57 33.8 q G96
2016-03-16 05:39:36 C 09 53 55.11 +10 57 33.4 q G96
2016-03-16 05:44:46 C 09 53 54.84 +10 57 33.2 q G96
2016-03-16 05:49:56 C 09 53 54.57 +10 57 32.8 q G96
2016-03-17 07:42:15 C 09 52 37.68 +10 55 53.1 q H45
2016-03-17 07:43:27 C 09 52 37.59 +10 55 52.9 q H45
2016-03-17 07:45:08 C 09 52 37.52 +10 55 52.8 q H45
2016-03-17 07:46:27 C 09 52 37.47 +10 55 52.7 q H45
2016-03-17 07:47:41 C 09 52 37.41 +10 55 52.4 q H45
2016-03-17 07:48:57 C 09 52 37.33 +10 55 52.1 q H45
2016-03-17 21:30:45 C 09 51 58.06 +10 54 56.6 q 160
2016-03-17 21:32:59 C 09 51 57.97 +10 54 55.4 q 160
2016-03-17 21:35:13 C 09 51 57.77 +10 54 57.2 q 160
2016-03-18 22:15:27 C 09 50 48.39 +10 53 12.5 q 160
2016-03-18 22:17:43 C 09 50 48.29 +10 53 12.2 q 160
2016-03-18 22:19:58 C 09 50 48.11 +10 53 11.5 q 160
2016-03-22 02:11:56 C 09 47 30.11 +10 47 16.6 u H21
2016-03-22 02:15:47 C 09 47 29.94 +10 47 16.5 u H21
2016-03-22 02:19:41 C 09 47 29.77 +10 47 16.1 u H21
2016-03-22 02:23:31 C 09 47 29.62 +10 47 15.6 u H21
2016-03-22 02:27:18 C 09 47 29.44 +10 47 15.5 u H21
2016-03-22 02:29:11 C 09 47 29.36 +10 47 15.3 u H21
2016-03-22 02:32:58 C 09 47 29.22 +10 47 15.0 u H21
2016-03-22 02:36:45 C 09 47 29.05 +10 47 14.7 u H21
2016-03-22 02:40:37 C 09 47 28.89 +10 47 14.2 u H21
2016-03-22 02:44:32 C 09 47 28.70 +10 47 14.1 u H21
2016-03-22 02:48:18 C 09 47 28.57 +10 47 13.7 u H21
2016-03-22 02:52:04 C 09 47 28.39 +10 47 13.3 u H21
2016-03-22 02:56:09 C 09 47 28.21 +10 47 12.9 u H21
2016-03-22 03:00:06 C 09 47 28.06 +10 47 12.6 u H21
2016-03-22 03:03:53 C 09 47 27.90 +10 47 12.5 u H21
2016-03-25 09:50:33 C 09 44 26.31 +10 40 09.2 L T05
2016-03-25 10:21:14 C 09 44 25.21 +10 40 04.2 L T05
2016-03-25 10:51:42 C 09 44 24.11 +10 40 01.7 L T05
2016-03-25 11:22:06 C 09 44 23.00 +10 39 59.5 L T05
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-08-29 07:20:00 53416156 10 us 8560 -14 -14
2017-08-30 08:30:00 50057919.82 3 us 8560 -14 -14
2017-09-01 08:30:00 47128765.14 3 us 8560 -14 -14
2017-09-06 10:10:00 60804814.037 5 us 8560 -14 -14
2017-09-08 07:00:00 70833313.23 3 us 8560 -14 -14
2017-09-13 08:00:00 102972248.16 3 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)