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
1994-12-09 12:57:06 C 11 51 39.97 +03 10 35.1 a 691
1995-01-13 15:11:44 C 12 03 08.22 -01 39 33.7 413
1995-01-13 15:15:25 C 12 03 08.17 -01 39 35.0 413
1995-01-13 15:19:29 C 12 03 08.16 -01 39 36.2 413
1995-02-01 17:28:30 C 11 53 44.51 -03 15 43.0 413
1995-02-01 17:34:35 C 11 53 44.29 -03 15 44.0 413
1995-02-21 10:27:59 C 11 31 12.15 -03 52 37.6 z 658
1995-02-21 10:39:00 C 11 31 11.50 -03 52 38.1 z 658
1995-02-21 10:50:30 C 11 31 10.81 -03 52 38.3 z 658
1995-03-21 13:33:11 C 10 49 03.07 -03 05 10.1 413
1995-03-21 13:36:04 C 10 49 02.89 -03 05 09.8 413
1995-04-21 07:52:31 C 10 20 47.13 -01 57 26.8 658
1995-04-21 08:00:30 C 10 20 46.99 -01 57 26.5 658
1995-04-21 08:05:30 C 10 20 46.90 -01 57 26.2 658
1996-09-07 19:23:17 C 07 23 31.46 +42 37 54.7 381
1996-09-07 19:25:59 C 07 23 31.99 +42 37 54.9 381
1996-10-04 01:36:40 C 08 58 38.13 +40 29 14.2 z 557
1996-10-04 02:52:07 C 08 58 47.55 +40 28 50.4 z 557
1996-10-04 03:36:19 C 08 58 53.06 +40 28 36.6 z 557
1996-11-23 00:15:46 C 10 36 04.24 +34 42 11.5 z 557
1996-11-23 01:42:44 C 10 36 07.45 +34 41 59.7 z 557
1996-11-23 03:24:16 C 10 36 11.13 +34 41 45.7 z 557
1996-11-23 05:07:48 C 10 36 14.82 +34 41 31.0 z 557
1996-12-21 02:53:26 C 10 41 13.45 +34 25 49.4 z 610
1996-12-21 02:59:04 C 10 41 13.26 +34 25 50.1 z 610
1996-12-21 03:04:03 C 10 41 13.09 +34 25 50.6 z 610
1997-01-13 00:30:24 C 10 10 00.06 +35 21 19.4 z 610
1997-01-13 00:51:59 C 10 09 58.17 +35 21 20.6 z 610
1997-01-13 01:21:29 C 10 09 55.59 +35 21 22.2 z 610
1997-01-27 00:58:39 C 09 37 51.22 +35 07 47.9 z 557
1997-01-27 02:06:08 C 09 37 44.25 +35 07 37.3 z 557
1997-01-27 03:37:54 C 09 37 34.82 +35 07 22.6 z 557
1997-02-04 08:11:43 C 09 17 58.13 +34 23 51.0 c 608
1997-02-04 09:14:43 C 09 17 51.86 +34 23 33.5 c 608
1997-02-07 23:03:51 C 09 09 45.06 +33 56 10.0 z 108
1997-02-07 23:19:07 C 09 09 43.48 +33 56 05.2 z 108
1997-02-07 23:29:10 C 09 09 42.67 +33 56 01.8 z 108
1997-02-10 18:21:05 C 09 03 43.82 +33 31 38.2 z 557
1997-02-10 18:39:48 C 09 03 42.18 +33 31 31.3 z 557
1997-02-10 19:09:42 C 09 03 39.53 +33 31 20.1 z 557
1997-02-22 10:45:15 C 08 42 47.37 +31 28 01.1 c 608
1997-02-22 11:10:11 C 08 42 45.78 +31 27 49.2 c 608
1997-02-27 23:01:39 C 08 35 34.23 +30 22 27.2 z 118
1997-02-27 23:15:44 C 08 35 33.54 +30 22 19.9 z 118
1998-04-06 17:06:58 C 15 27 51.39 -52 12 14.4 422
1998-04-06 17:09:06 C 15 27 51.30 -52 12 15.8 422
1998-04-06 17:11:13 C 15 27 51.26 -52 12 17.0 422
1998-05-31 08:52:19 C 13 31 11.23 -55 36 20.7 422
1998-05-31 08:54:08 C 13 31 11.09 -55 36 20.0 422
1998-05-31 08:55:58 C 13 31 10.96 -55 36 19.0 422
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)