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
2012-04-01 02:05:52 C 14 06 00.69 -44 16 05.6 u I39
2012-04-01 02:45:40 C 14 05 58.14 -44 16 21.2 u I39
2012-04-16 15:17:16 C 13 38 18.770 -45 45 38.68 r E12
2012-04-16 15:33:39 C 13 38 17.358 -45 45 40.06 r E12
2012-04-16 15:49:55 C 13 38 15.945 -45 45 41.35 r E12
2012-04-29 14:13:06 C 13 11 37.19 -45 30 24.1 r E12
2012-04-29 14:29:27 C 13 11 35.77 -45 30 21.0 r E12
2012-04-29 14:45:51 C 13 11 34.36 -45 30 17.8 r E12
2012-04-29 15:02:12 C 13 11 32.96 -45 30 14.7 r E12
2012-06-22 23:29:49 C 12 26 37.05 -36 41 11.6 u I20
2012-06-22 23:42:00 C 12 26 37.29 -36 41 07.1 u I20
2012-06-22 23:52:07 C 12 26 37.42 -36 41 03.9 u I20
2013-02-28 16:48:23 C 00 47 09.81 +20 58 07.1 q C73
2013-02-28 16:49:34 C 00 47 09.98 +20 58 08.3 q C73
2013-02-28 16:50:43 C 00 47 10.20 +20 58 09.8 q C73
2013-02-28 16:51:53 C 00 47 10.32 +20 58 11.5 q C73
2013-02-28 16:53:02 C 00 47 10.53 +20 58 13.5 q C73
2013-02-28 16:54:12 C 00 47 10.79 +20 58 12.7 q C73
2013-02-28 16:55:21 C 00 47 10.96 +20 58 12.5 q C73
2013-02-28 16:56:30 C 00 47 11.05 +20 58 17.6 q C73
2013-02-28 16:57:40 C 00 47 11.23 +20 58 17.7 q C73
2013-02-28 16:58:49 C 00 47 11.58 +20 58 18.3 q C73
2013-02-28 16:59:58 C 00 47 11.59 +20 58 22.9 q C73
2013-02-28 17:01:07 C 00 47 11.77 +20 58 22.4 q C73
2013-02-28 17:02:17 C 00 47 11.97 +20 58 25.2 q C73
2013-02-28 17:03:27 C 00 47 12.10 +20 58 27.2 q C73
2013-02-28 17:04:36 C 00 47 12.27 +20 58 27.7 q C73
2013-02-28 17:05:45 C 00 47 12.55 +20 58 27.9 q C73
2013-02-28 17:06:19 C 00 47 12.68 +20 58 28.1 q C73
2013-03-31 00:21:55 C 02 49 28.77 +31 49 28.8 q I15
2013-03-31 00:32:32 C 02 49 30.59 +31 49 35.0 q I15
2013-03-31 00:36:48 C 02 49 31.32 +31 49 37.5 q I15
2013-11-12 20:46:13 C 11 53 30.28 -00 33 41.6 q D29
2013-11-12 21:03:23 C 11 53 31.13 -00 33 49.9 q D29
2013-11-12 21:20:34 C 11 53 31.90 -00 33 59.8 q D29
2013-12-10 15:19:13 C 12 22 13.650 -06 04 07.49 L F51
2013-12-10 15:25:52 C 12 22 13.885 -06 04 10.64 L F51
2013-12-31 12:51:14 C 12 36 55.61 -09 54 12.4 q 703
2013-12-31 13:03:33 C 12 36 55.81 -09 54 15.7 q 703
2013-12-31 13:15:54 C 12 36 56.11 -09 54 21.5 q 703
2014-01-04 11:43:18 C 12 38 48.15 -10 35 22.0 R G45
2014-01-04 12:00:14 C 12 38 48.45 -10 35 30.2 R G45
2014-01-04 12:16:26 C 12 38 48.72 -10 35 37.0 R G45
2014-01-04 12:33:08 C 12 38 49.02 -10 35 43.8 R G45
2014-01-04 12:48:45 C 12 38 49.31 -10 35 49.7 R G45
2014-01-04 13:06:57 C 12 38 49.58 -10 35 58.4 R G45
2014-01-11 11:31:03 C 12 41 15.93 -11 45 58.8 V G45
2014-01-11 12:17:03 C 12 41 16.40 -11 46 18.1 V G45
2014-01-11 12:38:14 C 12 41 16.61 -11 46 26.5 V G45
2014-01-11 13:03:54 C 12 41 16.88 -11 46 37.0 V G45
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)