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
2022-12-22 21:31:05 C 23 50 37.09 +61 30 41.2 q Z36
2022-12-22 21:31:33 C 23 50 37.22 +61 30 39.3 q Z36
2022-12-22 21:32:00 C 23 50 37.34 +61 30 37.8 q Z36
2022-12-22 21:32:29 C 23 50 37.43 +61 30 36.0 q Z36
2022-12-22 21:32:56 C 23 50 37.60 +61 30 34.6 q Z36
2022-12-22 21:33:25 C 23 50 37.73 +61 30 32.8 q Z36
2022-12-22 21:33:52 C 23 50 37.88 +61 30 31.3 q Z36
2022-12-22 21:34:20 C 23 50 37.99 +61 30 29.7 q Z36
2022-12-22 21:34:49 C 23 50 38.14 +61 30 28.2 q Z36
2022-12-22 21:36:12 C 23 50 38.51 +61 30 23.2 q Z36
2022-12-22 21:37:37 C 23 50 38.89 +61 30 18.1 q Z36
2022-12-22 21:38:06 C 23 50 39.04 +61 30 16.4 q Z36
2022-12-22 21:38:33 C 23 50 39.13 +61 30 15.2 q Z36
2022-12-22 21:39:02 C 23 50 39.26 +61 30 13.5 q Z36
2022-12-22 21:39:29 C 23 50 39.40 +61 30 12.1 q Z36
2022-12-22 21:39:57 C 23 50 39.55 +61 30 10.0 q Z36
2022-12-22 21:40:26 C 23 50 39.64 +61 30 08.3 q Z36
2022-12-22 21:40:53 C 23 50 39.81 +61 30 06.8 q Z36
2022-12-22 21:41:22 C 23 50 39.91 +61 30 05.1 q Z36
2022-12-22 21:41:49 C 23 50 40.06 +61 30 03.4 q Z36
2022-12-22 21:42:17 C 23 50 40.16 +61 30 02.1 q Z36
2022-12-22 21:42:46 C 23 50 40.27 +61 30 00.2 q Z36
2022-12-22 21:43:14 C 23 50 40.42 +61 29 59.0 q Z36
2022-12-22 21:43:43 C 23 50 40.57 +61 29 56.9 q Z36
2022-12-27 17:09:11 C 00 21 19.14 +54 18 31.6 V 130
2022-12-27 17:10:58 C 00 21 19.56 +54 18 24.3 V 130
2022-12-27 17:12:46 C 00 21 19.96 +54 18 17.0 V 130
2022-12-27 17:14:16 C 00 21 20.31 +54 18 10.9 V 130
2022-12-28 01:02:17 C 00 23 10.83 +53 45 27.1 M32
2022-12-28 01:02:40 C 00 23 10.89 +53 45 25.9 M32
2022-12-28 01:03:02 C 00 23 11.03 +53 45 24.1 M32
2022-12-28 01:03:25 C 00 23 11.11 +53 45 22.8 M32
2022-12-28 01:03:48 C 00 23 11.23 +53 45 20.8 M32
2022-12-28 01:04:11 C 00 23 11.30 +53 45 20.4 M32
2022-12-28 01:04:34 C 00 23 11.40 +53 45 18.4 M32
2022-12-28 01:04:57 C 00 23 11.51 +53 45 17.0 M32
2022-12-28 01:05:20 C 00 23 11.62 +53 45 14.2 M32
2022-12-29 17:00:44 C 00 32 34.71 +50 57 02.0 X L18
2022-12-29 17:02:13 C 00 32 35.03 +50 56 55.4 X L18
2022-12-29 17:03:41 C 00 32 35.40 +50 56 49.3 X L18
2022-12-29 17:04:59 C 00 32 35.67 +50 56 43.1 X L18
2022-12-30 19:35:37 C 00 38 28.96 +48 59 47.8 V C40
2022-12-30 19:41:06 C 00 38 30.22 +48 59 22.6 V C40
2022-12-30 19:48:02 C 00 38 31.85 +48 58 50.0 V C40
2023-01-01 12:41:02 S 00 47 17.76 +45 52 21.6 L C51
2023-01-01 15:48:26 S 00 47 56.53 +45 37 49.1 L C51
2023-01-01 17:22:08 S 00 48 15.94 +45 30 31.3 L C51
2023-01-01 18:56:00 S 00 48 35.30 +45 23 12.1 L C51
2023-01-01 20:29:43 S 00 48 54.59 +45 15 53.2 L C51
2023-01-01 22:03:25 S 00 49 13.78 +45 08 34.4 L C51
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)