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
2005-11-29 01:35:31 C 21 06 35.20 +22 49 00.3 19.3 c 704
2005-11-29 01:53:54 C 21 06 38.05 +22 49 00.2 20.0 c 704
2005-11-29 02:14:09 C 21 06 41.11 +22 49 00.6 19.7 c 704
2005-11-29 02:33:07 C 21 06 44.01 +22 49 00.3 19.5 c 704
2005-11-29 02:51:40 C 21 06 46.88 +22 49 01.2 19.7 c 704
2005-11-30 01:07:36 C 21 10 16.99 +22 49 40.0 c 711
2005-11-30 01:14:25 C 21 10 18.11 +22 49 39.6 c 711
2005-11-30 01:21:27 C 21 10 19.20 +22 49 39.8 c 711
2005-11-30 01:23:21 C 21 10 19.47 +22 49 39.2 19.5 c 704
2005-11-30 01:38:26 C 21 10 21.90 +22 49 39.4 r G96
2005-11-30 01:40:01 C 21 10 22.15 +22 49 39.6 r G96
2005-11-30 02:00:04 C 21 10 25.15 +22 49 40.4 19.8 c 704
2005-11-30 02:37:06 C 21 10 30.91 +22 49 40.0 19.7 c 704
2005-11-30 19:12:21 C 21 13 07.75 +22 50 00.3 19.4 r 147
2005-11-30 19:19:39 C 21 13 08.87 +22 50 00.6 19.2 r 147
2005-11-30 19:25:56 C 21 13 09.85 +22 50 00.8 19.3 r 147
2005-12-01 18:57:49 C 21 16 52.40 +22 50 26.3 r 113
2005-12-01 18:59:24 C 21 16 52.63 +22 50 26.0 r 113
2005-12-01 19:00:59 C 21 16 52.85 +22 50 26.1 r 113
2005-12-03 01:12:44 C 21 21 40.15 +22 50 52.6 r 932
2005-12-03 01:18:44 C 21 21 41.09 +22 50 52.1 r 932
2005-12-03 01:20:25 C 21 21 41.36 +22 50 52.7 r 932
2005-12-03 22:56:33 C 21 25 07.57 +22 51 04.7 r 932
2005-12-03 23:03:00 C 21 25 08.59 +22 51 04.6 r 932
2005-12-03 23:08:38 C 21 25 09.48 +22 51 04.5 r 932
2005-12-04 03:04:31 C 21 25 46.62 +22 51 06.3 r 448
2005-12-04 03:15:59 C 21 25 48.41 +22 51 06.1 r 448
2005-12-04 03:25:08 C 21 25 49.88 +22 51 06.0 r 448
2005-12-07 18:28:27 C 21 39 44.99 +22 50 43.0 c A50
2005-12-07 18:31:38 C 21 39 45.39 +22 50 42.8 c A50
2005-12-07 18:33:44 C 21 39 45.77 +22 50 43.4 c A50
2005-12-07 18:34:48 C 21 39 45.88 +22 50 43.1 c A50
2005-12-08 01:35:48 C 21 40 53.74 +22 50 42.7 d 291
2005-12-08 01:47:08 C 21 40 55.57 +22 50 42.4 d 291
2005-12-08 01:53:01 C 21 40 56.54 +22 50 42.3 d 291
2005-12-12 17:57:08 C 21 59 02.11 +22 47 43.3 o 461
2005-12-12 18:00:37 C 21 59 02.68 +22 47 43.4 o 461
2005-12-12 18:04:05 C 21 59 03.17 +22 47 43.3 o 461
2005-12-17 01:57:09 C 22 15 58.53 +22 42 36.6 r 448
2005-12-17 02:10:19 C 22 16 00.59 +22 42 36.8 r 448
2005-12-17 02:21:31 C 22 16 02.32 +22 42 35.5 r 448
2005-12-24 02:43:53 C 22 43 42.73 +22 29 01.5 d 291
2005-12-24 02:50:16 C 22 43 43.81 +22 29 01.0 d 291
2005-12-24 02:56:06 C 22 43 44.77 +22 29 00.4 d 291
2005-12-29 02:29:55 C 23 03 32.33 +22 15 26.1 d 291
2005-12-29 02:37:00 C 23 03 33.50 +22 15 25.2 d 291
2005-12-29 02:45:30 C 23 03 34.89 +22 15 24.0 d 291
2006-01-05 01:48:57 C 23 31 20.53 +21 51 00.9 r 448
2006-01-05 02:09:53 C 23 31 23.96 +21 50 57.5 r 448
2006-01-05 02:30:52 C 23 31 27.39 +21 50 53.5 r 448
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)