377097 (2002 WQ4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5561067250 ± 2.00e+00
Semi-major axis (a)1.9565299014 AU ± 3.00e+00
Inclination (i)3.93632407° ± 4.00e+00
Long. of Asc. Node (Ω)266.86411712° ± 5.00e+00
Arg. of Perihelion (ω)244.66119266° ± 6.00e+00
Mean Anomaly (M)104.91451857° ± 1.33e-06
Mean Motion (n)0.3601492725°/day ± 8.28e-01
Perihelion dist (q)0.86849047 AU ± 4.13e+00
Aphelion dist (Q)3.04456934 AU ± 6.09e+00
Orbital Period2.73671602 yr ± 6.29e+00
NGA Modelr2
A2-2.50318806e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.71
G (slope)0.15
Alternative Designations

1950 XB1

Orbit Solution
SourceIAA
Solution Date2026-04-28
RMS Residual0.339″
Uncertainty0
Orbit TypeApollo
MOID0.019197 AU
Observations Used388
Oppositions48
Arc Total1950-2025
First Observation Used1950-12-11
Last Observation Used2025-01-03
Observations (405)
Date Type RA Dec Mag Band Observatory
2024-12-09 13:07:18 C 07 27 25.19 +24 08 26.7 V U94
2024-12-10 05:49:35 C 07 31 58.602 +23 44 48.73 V 703
2024-12-10 05:52:54 C 07 31 59.513 +23 44 44.56 V 703
2024-12-10 05:56:12 C 07 32 00.395 +23 44 39.73 V 703
2024-12-10 05:59:31 C 07 32 01.302 +23 44 35.09 V 703
2024-12-10 11:53:47 C 07 33 37.620 +23 36 01.91 V T05
2024-12-10 12:07:12 C 07 33 41.107 +23 35 41.21 V T05
2024-12-10 12:09:49 C 07 33 41.789 +23 35 37.18 V T05
2024-12-10 12:14:22 C 07 33 43.006 +23 35 30.44 V T05
2024-12-10 12:42:43 C 07 33 50.486 +23 34 47.06 V T05
2024-12-11 05:59:25 C 07 38 52.231 +23 06 48.85 V 703
2024-12-11 06:02:45 C 07 38 53.185 +23 06 43.67 V 703
2024-12-11 06:06:03 C 07 38 54.150 +23 06 38.45 V 703
2024-12-11 06:09:22 C 07 38 55.086 +23 06 33.16 V 703
2024-12-11 11:07:37 C 07 40 22.970 +22 58 26.08 V T08
2024-12-11 11:10:16 C 07 40 23.724 +22 58 21.54 V T08
2024-12-11 11:15:01 C 07 40 25.075 +22 58 13.48 V T08
2024-12-11 11:22:36 C 07 40 27.245 +22 58 00.95 V T08
2024-12-12 10:33:04 C 07 47 43.111 +22 15 38.20 V T08
2024-12-12 10:35:47 C 07 47 43.944 +22 15 33.01 V T08
2024-12-12 10:39:47 C 07 47 45.197 +22 15 25.52 V T08
2024-12-12 10:47:17 C 07 47 47.518 +22 15 11.41 V T08
2024-12-13 05:33:31 C 07 54 06.304 +21 36 31.00 V 703
2024-12-13 05:36:49 C 07 54 07.456 +21 36 23.80 V 703
2024-12-13 05:40:07 C 07 54 08.572 +21 36 16.92 V 703
2024-12-13 05:43:24 C 07 54 09.709 +21 36 09.32 V 703
2024-12-13 19:26:34 C 07 59 00.74 +21 05 14.3 V M32
2024-12-13 19:28:28 C 07 59 01.42 +21 05 10.1 V M32
2024-12-13 19:30:22 C 07 59 02.11 +21 05 05.8 V M32
2024-12-13 19:32:18 C 07 59 02.80 +21 05 01.4 V M32
2024-12-13 19:34:17 C 07 59 03.51 +21 04 56.9 V M32
2024-12-14 06:25:23 C 08 03 03.769 +20 39 28.66 V 703
2024-12-14 06:28:38 C 08 03 04.968 +20 39 20.77 V 703
2024-12-14 06:31:53 C 08 03 06.160 +20 39 13.32 V 703
2024-12-14 06:35:07 C 08 03 07.333 +20 39 04.79 V 703
2024-12-15 10:44:39 C 08 14 13.217 +19 24 46.66 V T08
2024-12-15 10:50:05 C 08 14 15.408 +19 24 31.03 V T08
2024-12-15 10:54:07 C 08 14 17.035 +19 24 19.73 V T08
2024-12-15 11:04:43 C 08 14 21.175 +19 23 51.00 V T08
2024-12-16 22:41:43 C 08 30 02.774 +17 30 39.20 V Z80
2024-12-16 22:48:47 C 08 30 05.993 +17 30 15.66 V Z80
2024-12-20 23:27:59 C 09 23 24.974 +10 14 02.76 V Z80
2024-12-20 23:32:41 C 09 23 27.931 +10 13 36.26 V Z80
2024-12-20 23:37:21 C 09 23 30.919 +10 13 10.81 V Z80
2024-12-24 00:17:30 C 10 14 47.710 +02 18 45.33 W M01
2024-12-24 00:20:00 C 10 14 49.571 +02 18 27.24 W M01
2024-12-24 00:22:30 C 10 14 51.433 +02 18 09.15 W M01
2024-12-24 07:42:24 C 10 20 33.796 +01 24 01.84 V 703
2024-12-24 07:45:41 C 10 20 36.280 +01 23 37.54 V 703
2024-12-24 07:48:56 C 10 20 38.771 +01 23 13.34 V 703
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2024-12-27 14:00:00 -65783.1 0.2 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)