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
2000-08-11 07:35:58 C 22 35 28.05 +19 03 03.7 16.8 c 704
2000-08-11 07:56:40 C 22 35 26.92 +19 02 47.9 16.3 c 704
2000-08-11 08:17:21 C 22 35 25.74 +19 02 30.9 16.4 c 704
2000-08-11 08:38:01 C 22 35 24.57 +19 02 14.6 16.9 c 704
2000-08-11 16:17:51 C 22 34 59.44 +18 56 22.1 413
2000-08-11 16:21:31 C 22 34 59.24 +18 56 18.6 413
2000-08-11 20:43:14 C 22 34 45.36 +18 52 39.0 z 151
2000-08-11 20:46:38 C 22 34 45.16 +18 52 35.1 z 151
2000-08-11 20:53:38 C 22 34 44.77 +18 52 32.1 z 151
2000-08-11 20:56:54 C 22 34 44.63 +18 52 27.5 z 151
2000-08-11 21:02:24 C 22 34 44.09 +18 52 23.6 z 151
2000-08-11 21:12:02 C 22 34 43.79 +18 52 15.3 z 151
2000-08-11 22:23:00 C 22 34 39.71 +18 51 18.1 m 163
2000-08-11 22:27:10 C 22 34 39.46 +18 51 15.4 m 163
2000-08-11 22:31:20 C 22 34 39.24 +18 51 11.9 m 163
2000-08-11 22:36:15 C 22 34 38.90 +18 51 08.3 m 163
2000-08-20 20:57:34 C 22 21 02.85 +15 16 47.8 587
2000-08-20 21:09:50 C 22 21 01.91 +15 16 32.9 587
2000-08-20 21:17:34 C 22 21 01.34 +15 16 23.6 587
2000-08-21 20:27:17 C 22 19 20.99 +14 47 51.0 c 046
2000-08-21 20:33:20 C 22 19 20.56 +14 47 44.3 c 046
2000-08-21 20:34:48 C 22 19 20.42 +14 47 41.9 c 046
2000-08-21 20:36:15 C 22 19 20.28 +14 47 40.8 c 046
2000-08-21 20:37:51 C 22 19 20.20 +14 47 38.6 c 046
2000-08-22 04:31:59 C 22 18 44.98 +14 37 49.3 860
2000-08-22 04:43:51 C 22 18 44.09 +14 37 35.6 860
2000-08-22 22:45:53 C 22 17 24.13 +14 14 06.6 104
2000-08-22 22:48:33 C 22 17 23.93 +14 14 02.9 104
2000-08-22 22:51:14 C 22 17 23.74 +14 14 00.2 104
2000-08-22 22:53:54 C 22 17 23.55 +14 13 56.7 104
2000-08-23 15:25:49 C 22 16 08.71 +13 51 59.4 z 402
2000-08-23 15:27:38 C 22 16 08.61 +13 51 56.9 z 402
2000-08-23 15:29:26 C 22 16 08.44 +13 51 54.2 z 402
2000-08-23 16:18:00 C 22 16 04.67 +13 50 49.3 360
2000-08-23 16:21:30 C 22 16 04.40 +13 50 44.6 360
2000-08-23 16:26:30 C 22 16 03.99 +13 50 37.8 360
2000-08-23 21:12:49 C 22 15 42.55 +13 44 07.4 104
2000-08-24 01:48:35 C 22 15 21.07 +13 37 52.3 118
2000-08-24 01:58:16 C 22 15 20.36 +13 37 39.0 118
2000-08-24 09:05:49 C 22 14 47.71 +13 27 51.8 c 658
2000-08-24 09:13:16 C 22 14 47.18 +13 27 41.2 c 658
2000-08-24 09:21:23 C 22 14 46.52 +13 27 30.0 c 658
2000-08-24 22:44:10 C 22 13 44.60 +13 08 48.0 540
2000-08-24 22:50:59 C 22 13 44.08 +13 08 38.3 540
2000-08-25 00:18:08 C 22 13 37.11 +13 06 35.4 118
2000-08-25 00:25:19 C 22 13 36.53 +13 06 25.4 118
2000-08-25 03:57:03 C 22 13 20.10 +13 01 35.6 860
2000-08-25 04:04:16 C 22 13 19.50 +13 01 26.1 860
2000-08-25 10:16:34 C 22 12 50.29 +12 52 22.3 c 658
2000-08-25 10:23:05 C 22 12 49.79 +12 52 12.8 c 658
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)