23187 (2000 PN9)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5893652209 ± 4.57e-09
Semi-major axis (a)1.8469477145 AU ± 3.08e-10
Inclination (i)51.33590425° ± 2.99e-06
Long. of Asc. Node (Ω)164.28086830° ± 2.07e-07
Arg. of Perihelion (ω)293.54110100° ± 1.16e-06
Mean Anomaly (M)324.53859175° ± 7.01e-07
Mean Motion (n)0.3926723979°/day ± 9.83e-11
Perihelion dist (q)0.75842097 AU ± 8.45e-09
Aphelion dist (Q)2.93547446 AU ± 8.46e-09
Orbital Period2.51004728 yr ± 6.28e-10
Physical Parameters
H (abs. magnitude)16.05
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.292″
Uncertainty0
Orbit TypeApollo
MOID0.014129 AU
Observations Used2223
Radar Obs Used8
Gaia Obs Used118
Oppositions16
Arc Total1990-2025
First Observation Used1990-08-02
Last Observation Used2025-11-12
Observations (2307)
Date Type RA Dec Mag Band Observatory
2006-03-29 20:03:42 C 11 26 31.425 +69 03 47.93 16.3 u A84
2006-03-29 20:05:58 C 11 26 31.469 +69 03 46.68 16.3 u A84
2006-03-29 20:08:13 C 11 26 31.520 +69 03 45.37 16.4 u A84
2006-03-29 20:10:29 C 11 26 31.575 +69 03 44.18 16.3 u A84
2006-03-29 20:12:45 C 11 26 31.624 +69 03 42.80 16.3 u A84
2006-03-29 20:15:00 C 11 26 31.673 +69 03 41.56 16.3 u A84
2006-03-29 20:17:16 C 11 26 31.727 +69 03 40.28 16.3 u A84
2006-03-29 20:19:31 C 11 26 31.784 +69 03 38.92 16.4 u A84
2006-03-29 20:21:47 C 11 26 31.831 +69 03 37.72 16.4 u A84
2006-03-29 20:24:03 C 11 26 31.870 +69 03 36.38 16.3 u A84
2006-03-29 20:26:18 C 11 26 31.929 +69 03 35.09 16.3 u A84
2006-03-29 20:28:34 C 11 26 31.980 +69 03 33.76 16.3 u A84
2006-03-29 20:30:50 C 11 26 32.030 +69 03 32.49 16.3 u A84
2006-03-29 20:33:05 C 11 26 32.073 +69 03 31.17 16.3 u A84
2006-03-29 20:35:21 C 11 26 32.135 +69 03 29.80 16.3 u A84
2006-03-29 20:37:36 C 11 26 32.183 +69 03 28.61 16.3 u A84
2006-03-29 20:39:52 C 11 26 32.237 +69 03 27.26 16.3 u A84
2006-03-29 20:42:07 C 11 26 32.284 +69 03 25.99 16.3 u A84
2006-03-29 20:44:23 C 11 26 32.339 +69 03 24.71 16.3 u A84
2006-03-29 20:48:19 C 11 26 32.428 +69 03 22.45 16.3 u A84
2006-03-29 20:50:35 C 11 26 32.472 +69 03 21.06 16.2 u A84
2006-03-29 20:52:50 C 11 26 32.522 +69 03 19.79 16.3 u A84
2006-03-29 20:55:06 C 11 26 32.581 +69 03 18.45 16.4 u A84
2006-03-29 20:57:21 C 11 26 32.632 +69 03 17.15 16.4 u A84
2006-03-29 20:59:38 C 11 26 32.677 +69 03 15.80 16.3 u A84
2006-03-29 21:01:53 C 11 26 32.732 +69 03 14.54 16.3 u A84
2006-03-29 21:04:09 C 11 26 32.780 +69 03 13.17 16.3 u A84
2006-03-29 21:06:24 C 11 26 32.832 +69 03 11.86 16.4 u A84
2006-03-29 21:08:40 C 11 26 32.885 +69 03 10.57 16.3 u A84
2006-03-29 21:10:55 C 11 26 32.931 +69 03 09.14 16.4 u A84
2006-03-29 21:13:11 C 11 26 32.978 +69 03 07.90 16.4 u A84
2006-03-29 21:15:26 C 11 26 33.039 +69 03 06.57 16.4 u A84
2006-03-29 21:17:42 C 11 26 33.083 +69 03 05.16 16.4 u A84
2006-03-29 21:19:57 C 11 26 33.135 +69 03 03.91 16.4 u A84
2006-03-29 21:22:12 C 11 26 33.186 +69 03 02.51 16.4 u A84
2006-03-29 21:24:28 C 11 26 33.239 +69 03 01.28 16.4 u A84
2006-03-29 21:26:43 C 11 26 33.298 +69 02 59.90 16.4 u A84
2006-03-29 21:28:59 C 11 26 33.345 +69 02 58.57 16.4 u A84
2006-03-29 21:31:14 C 11 26 33.382 +69 02 57.22 16.4 u A84
2006-03-30 21:15:16 C 11 27 24.73 +68 49 11.5 c 434
2006-03-30 21:17:50 C 11 27 24.76 +68 49 10.5 c 434
2006-03-30 21:20:57 C 11 27 24.79 +68 49 08.1 c 434
2006-03-30 21:23:38 C 11 27 24.87 +68 49 07.4 c 434
2006-04-03 22:55:09 C 11 30 36.42 +67 54 05.8 o A32
2006-04-03 23:16:16 C 11 30 36.95 +67 53 53.8 o A32
2006-04-03 23:17:21 C 11 30 36.96 +67 53 53.1 o A32
2006-04-03 23:38:20 C 11 30 37.47 +67 53 41.1 o A32
2006-04-04 21:06:16 C 11 31 19.97 +67 41 44.9 o J65
2006-04-04 21:08:19 C 11 31 20.01 +67 41 44.1 o J65
2006-04-04 21:10:22 C 11 31 19.96 +67 41 43.0 o J65
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2001-03-03 09:45:00 -89603 3 Hz 2380 -1 -1
2001-03-03 11:20:00 62195926.9 10 us 8560 -14 -14
2001-03-03 11:20:00 -345113.8 5 Hz 8560 -14 -14
2001-03-04 10:29:00 67714671.08 2 us 2380 -1 -1
2001-03-05 10:04:00 76798876 2 us 2380 -1 -1
2006-03-07 17:10:00 34277451 20 us 8560 -14 -14
2006-03-07 19:00:00 35392186 3 us 8560 -14 -14
2006-03-07 20:10:00 36111353.6 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)