199003 (2005 WJ56)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1520194228 ± 9.55e-09
Semi-major axis (a)0.9590116507 AU ± 1.43e-10
Inclination (i)21.61637987° ± 2.38e-06
Long. of Asc. Node (Ω)288.01474602° ± 4.47e-07
Arg. of Perihelion (ω)297.65358928° ± 1.15e-06
Mean Anomaly (M)266.88352734° ± 2.13e-06
Mean Motion (n)1.0494855208°/day ± 2.36e-10
Perihelion dist (q)0.81322325 AU ± 9.16e-09
Aphelion dist (Q)1.10480005 AU ± 9.16e-09
Orbital Period0.93915186 yr ± 2.11e-10
Physical Parameters
H (abs. magnitude)18.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.321″
Uncertainty0
Orbit TypeAten
MOID0.022468 AU
Observations Used1234
Radar Obs Used5
Oppositions1
Arc Total2005-2024
First Observation Used2005-11-29
Last Observation Used2024-11-29
Observations (1308)
Date Type RA Dec Mag Band Observatory
2008-01-11 04:39:21 C 04 46 44.30 +06 15 47.8 r H45
2008-01-11 04:40:06 C 04 46 43.69 +06 15 24.1 r H45
2008-01-11 04:40:50 C 04 46 43.09 +06 15 00.7 r H45
2008-01-11 04:41:31 C 04 46 42.54 +06 14 39.1 r H45
2008-01-11 04:42:23 C 04 46 41.83 +06 14 11.0 r H45
2008-01-11 04:43:59 C 04 46 40.52 +06 13 20.0 r H45
2008-01-11 04:44:37 C 04 46 40.01 +06 12 59.7 r H45
2008-01-11 04:45:00 C 04 46 39.69 +06 12 47.7 r H45
2008-01-11 04:45:27 C 04 46 39.34 +06 12 33.5 r H45
2008-01-11 04:46:23 C 04 46 38.58 +06 12 03.7 r H45
2008-01-11 04:47:02 C 04 46 38.03 +06 11 42.2 r H45
2008-01-11 04:47:32 C 04 46 37.63 +06 11 26.9 r H45
2008-01-11 04:48:05 C 04 46 37.18 +06 11 09.2 r H45
2008-01-11 04:49:07 C 04 46 36.34 +06 10 36.6 r H45
2008-01-11 04:49:47 C 04 46 35.79 +06 10 15.0 r H45
2008-01-11 17:13:19 C 04 37 58.27 -00 14 45.3 o 151
2008-01-11 17:13:43 C 04 37 58.00 -00 14 56.7 o 151
2008-01-11 17:14:05 C 04 37 57.72 -00 15 08.3 o 151
2008-01-11 17:14:28 C 04 37 57.44 -00 15 19.6 o 151
2008-01-11 17:14:51 C 04 37 57.17 -00 15 31.4 o 151
2008-01-11 17:15:14 C 04 37 56.88 -00 15 42.8 o 151
2008-01-11 17:15:38 C 04 37 56.59 -00 15 54.1 o 151
2008-01-12 23:52:20 C 04 18 18.23 -13 58 31.8 r J37
2008-01-13 00:01:09 C 04 18 12.68 -14 01 58.4 r J37
2008-01-13 00:09:03 C 04 18 07.78 -14 05 03.2 r J37
2008-01-13 00:17:02 C 04 18 02.83 -14 08 09.7 r J37
2008-01-13 00:24:19 C 04 17 58.32 -14 10 59.6 r J37
2008-11-01 10:54:55 C 10 00 27.28 +39 04 11.3 r 703
2008-11-01 11:02:00 C 10 00 28.22 +39 03 59.3 r 703
2008-11-01 11:09:04 C 10 00 29.16 +39 03 51.3 r 703
2008-11-01 11:16:07 C 10 00 29.95 +39 03 42.8 r 703
2008-11-06 10:37:39 C 10 15 21.55 +36 24 03.9 19.0 c 704
2008-11-06 10:54:40 C 10 15 23.63 +36 23 38.2 19.3 c 704
2008-11-06 11:11:55 C 10 15 25.69 +36 23 15.3 19.5 c 704
2008-11-06 11:28:58 C 10 15 27.81 +36 22 51.7 19.3 c 704
2008-12-30 17:17:10 C 12 58 28.38 -19 52 32.5 r E12
2008-12-30 17:23:13 C 12 58 29.38 -19 52 55.1 r E12
2008-12-30 17:29:15 C 12 58 30.36 -19 53 17.7 r E12
2008-12-30 17:35:18 C 12 58 31.33 -19 53 40.2 r E12
2020-04-03 02:41:40 C 04 09 52.40 +18 41 08.2 V G96
2020-04-03 02:47:59 C 04 09 53.38 +18 41 06.7 V G96
2020-04-03 02:54:19 C 04 09 54.36 +18 41 04.9 V G96
2020-04-03 03:00:39 C 04 09 55.35 +18 41 02.7 V G96
2020-09-05 11:39:33 C 15 19 33.32 -02 17 09.5 q D29
2020-09-05 11:57:14 C 15 19 37.05 -02 16 52.9 q D29
2020-09-17 18:56:24 C 16 19 43.92 +01 57 45.2 V C95
2020-09-17 19:10:37 C 16 19 46.64 +01 57 56.6 V C95
2020-10-19 01:20:07 C 18 27 41.60 +10 30 27.8 V W33
2020-10-19 01:22:59 C 18 27 42.02 +10 30 29.3 V W33
2020-10-19 01:25:51 C 18 27 42.45 +10 30 30.9 V W33
Radar Observations (10)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2008-01-09 02:12:00 29272278.9 4 us 2380 -1 -1
2008-01-09.091667 2927227890 4000 us 2380 251 251
2008-01-10 01:04:00 19847.14 0.05 Hz 2380 -1 -1
2008-01-10 01:08:00 27936813.1 1 us 2380 -1 -1
2008-01-10.044444 1984714 5 Hz 2380 251 251
2008-01-10.047222 2793681310 1000 us 2380 251 251
2008-01-11 00:52:00 -25527.29 0.05 Hz 2380 -1 -1
2008-01-11 00:58:00 28122839.5 4 us 2380 -1 -1
2008-01-11.036111 -2552729 5 Hz 2380 251 251
2008-01-11.040278 2812283950 4000 us 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)