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
2023-01-01 23:37:07 S 00 49 33.04 +45 01 14.1 L C51
2023-01-01 23:37:18 S 00 49 33.07 +45 01 13.0 L C51
2023-01-02 01:10:49 S 00 49 52.16 +44 53 54.2 L C51
2023-01-02 02:44:31 S 00 50 11.22 +44 46 33.5 L C51
2023-01-02 02:44:42 S 00 50 11.35 +44 46 31.6 L C51
2023-01-02 05:52:06 S 00 50 49.38 +44 31 48.8 L C51
2023-01-02 08:59:40 S 00 51 27.40 +44 17 00.7 L C51
2023-01-04 17:02:44 C 01 02 23.90 +39 46 14.7 V M26
2023-01-04 17:07:52 C 01 02 24.82 +39 45 49.4 V M26
2023-01-04 17:13:00 C 01 02 25.71 +39 45 24.0 V M26
2023-01-07 19:32:38 C 01 15 43.79 +33 34 07.4 V Z45
2023-01-07 19:35:17 C 01 15 44.19 +33 33 53.6 V Z45
2023-01-07 19:37:57 C 01 15 44.64 +33 33 40.2 V Z45
2023-01-07 19:40:37 C 01 15 45.04 +33 33 26.7 V Z45
2023-01-07 19:43:16 C 01 15 45.44 +33 33 13.1 V Z45
2023-01-07 19:45:57 C 01 15 45.88 +33 32 59.7 V Z45
2023-01-09 04:14:12 C 01 21 11.164 +30 48 36.47 V 703
2023-01-09 04:21:53 C 01 21 12.352 +30 47 57.34 V 703
2023-01-09 04:29:34 C 01 21 13.518 +30 47 17.52 V 703
2023-01-09 04:37:15 C 01 21 14.684 +30 46 38.06 V 703
2023-01-09 23:49:09 C 01 24 23.98 +29 09 25.9 V W46
2023-01-10 00:14:22 C 01 24 27.67 +29 07 18.2 V W46
2023-01-10 00:30:16 C 01 24 30.00 +29 05 57.1 V W46
2023-01-10 20:01:55 C 01 27 34.75 +27 26 57.9 X L63
2023-01-10 20:25:56 C 01 27 38.29 +27 24 55.8 X L63
2023-01-10 20:45:51 C 01 27 41.26 +27 23 13.6 X L63
2023-01-11 19:30:42 C 01 31 12.46 +25 28 34.2 M32
2023-01-11 19:31:01 C 01 31 12.51 +25 28 33.1 M32
2023-01-11 19:31:21 C 01 31 12.54 +25 28 31.0 M32
2023-01-11 19:31:41 C 01 31 12.62 +25 28 30.0 M32
2023-01-11 19:32:00 C 01 31 12.69 +25 28 27.8 M32
2023-01-11 19:32:19 C 01 31 12.67 +25 28 26.3 M32
2023-01-11 19:32:39 C 01 31 12.76 +25 28 24.0 M32
2023-01-11 19:32:59 C 01 31 12.82 +25 28 23.0 M32
2023-01-11 19:33:19 C 01 31 12.87 +25 28 20.8 M32
2023-01-11 19:33:40 C 01 31 12.91 +25 28 19.5 M32
2023-01-11 19:33:59 C 01 31 12.93 +25 28 17.9 M32
2023-01-11 19:34:19 C 01 31 13.00 +25 28 16.0 M32
2023-01-11 19:34:39 C 01 31 13.02 +25 28 14.4 M32
2023-01-11 19:34:58 C 01 31 13.08 +25 28 12.9 M32
2023-01-11 19:35:18 C 01 31 13.13 +25 28 11.2 M32
2023-01-11 19:35:37 C 01 31 13.17 +25 28 09.8 M32
2023-01-11 19:35:57 C 01 31 13.24 +25 28 07.8 M32
2023-01-11 19:36:18 C 01 31 13.28 +25 28 06.3 M32
2023-01-11 19:36:38 C 01 31 13.32 +25 28 04.5 M32
2023-01-11 19:36:58 C 01 31 13.34 +25 28 03.1 M32
2023-01-11 19:37:17 C 01 31 13.40 +25 28 01.5 M32
2023-01-11 19:37:37 C 01 31 13.47 +25 27 59.7 M32
2023-01-11 19:37:56 C 01 31 13.52 +25 27 58.0 M32
2023-01-11 19:38:16 C 01 31 13.57 +25 27 55.8 M32
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)