4034 Vishnu (1986 PA)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4440123499 ± 1.15e-02
Semi-major axis (a)1.0593661162 AU ± 1.24e-02
Inclination (i)11.16925766° ± 6.63e-01
Long. of Asc. Node (Ω)157.86471855° ± 1.66e+00
Arg. of Perihelion (ω)296.70262904° ± 3.25e+00
Mean Anomaly (M)261.95042071° ± 1.98e+00
Mean Motion (n)0.9039473986°/day ± 1.59e-02
Perihelion dist (q)0.58899448 AU ± 1.40e-02
Aphelion dist (Q)1.52973775 AU ± 2.17e-02
Orbital Period1.09035801 yr ± 1.92e-02
NGA Modelr2
A2-3.37481791e-06 AU/d²
Physical Parameters
H (abs. magnitude)18.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.333″
Uncertainty0
Orbit TypeApollo
MOID0.018713 AU
Observations Used1245
Radar Obs Used1
Oppositions1
Arc Total1986-2025
First Observation Used1986-08-02
Last Observation Used2025-06-24
Observations (1315)
Date Type RA Dec Mag Band Observatory
2025-05-15 10:30:34 C 15 02 55.961 +29 57 39.96 V 703
2025-05-15 10:33:51 C 15 02 55.518 +29 57 35.71 V 703
2025-05-15 10:37:08 C 15 02 55.187 +29 57 30.28 V 703
2025-05-15 19:09:12 C 15 01 59.17 +29 46 21.6 X D04
2025-05-15 19:15:42 C 15 01 58.37 +29 46 13.3 X D04
2025-05-15 19:39:48 C 15 01 55.44 +29 45 42.2 X D04
2025-05-16 09:21:42 C 15 00 23.180 +29 27 53.93 V 703
2025-05-16 09:24:57 C 15 00 22.777 +29 27 50.08 V 703
2025-05-16 09:28:11 C 15 00 22.385 +29 27 45.65 V 703
2025-05-16 09:31:26 C 15 00 21.996 +29 27 41.83 V 703
2025-05-16 10:14:56 C 15 00 18.194 +29 26 52.66 V T08
2025-05-16 10:25:40 C 15 00 16.920 +29 26 38.94 V T08
2025-05-16 10:30:17 C 15 00 16.370 +29 26 32.96 V T08
2025-05-16 10:51:18 C 15 00 13.944 +29 26 05.28 V T08
2025-05-17 09:11:41 C 14 57 51.887 +28 56 51.29 V 703
2025-05-17 09:14:59 C 14 57 51.462 +28 56 46.75 V 703
2025-05-17 09:18:18 C 14 57 51.059 +28 56 42.00 V 703
2025-05-17 09:21:36 C 14 57 50.648 +28 56 37.97 V 703
2025-05-17 10:58:28 C 14 57 41.297 +28 54 39.24 V T08
2025-05-17 11:02:34 C 14 57 40.824 +28 54 34.24 V T08
2025-05-17 11:12:34 C 14 57 39.742 +28 54 20.88 V T08
2025-05-17 11:35:00 C 14 57 37.267 +28 53 51.11 V T08
2025-05-18 09:47:29 C 14 55 24.168 +28 24 49.36 V 703
2025-05-18 09:50:48 C 14 55 23.830 +28 24 46.12 V 703
2025-05-18 09:54:06 C 14 55 23.452 +28 24 41.51 V 703
2025-05-18 09:57:24 C 14 55 23.102 +28 24 37.44 V 703
2025-05-18 22:54:12 C 14 54 10.289 +28 07 46.24 q R88
2025-05-18 22:58:14 C 14 54 09.749 +28 07 40.80 q R88
2025-05-18 23:02:17 C 14 54 09.360 +28 07 34.93 q R88
2025-05-18 23:53:57 C 14 54 04.766 +28 06 36.61 V R17
2025-05-19 00:14:28 C 14 54 02.707 +28 06 09.86 V R17
2025-05-19 00:35:02 C 14 54 00.631 +28 05 43.22 V R17
2025-05-19 00:55:32 C 14 53 58.560 +28 05 16.55 V R17
2025-05-19 09:00:27 C 14 53 12.934 +27 54 44.21 V 703
2025-05-19 09:03:44 C 14 53 12.664 +27 54 40.14 V 703
2025-05-19 09:07:01 C 14 53 12.268 +27 54 34.96 V 703
2025-05-19 09:10:17 C 14 53 12.019 +27 54 31.10 V 703
2025-05-19 09:34:28 C 14 53 10.795 +27 54 07.09 V T05
2025-05-19 09:39:04 C 14 53 10.325 +27 54 00.86 V T05
2025-05-19 09:50:46 C 14 53 09.175 +27 53 45.78 V T05
2025-05-20 09:10:53 C 14 51 03.719 +27 23 26.59 V 703
2025-05-20 09:14:10 C 14 51 03.445 +27 23 22.70 V 703
2025-05-20 09:17:27 C 14 51 03.168 +27 23 18.02 V 703
2025-05-20 09:20:44 C 14 51 02.826 +27 23 13.70 V 703
2025-05-20 10:29:33 C 14 50 57.485 +27 21 52.63 V T08
2025-05-20 10:34:13 C 14 50 57.036 +27 21 46.91 V T08
2025-05-20 10:44:18 C 14 50 56.107 +27 21 33.37 V T08
2025-05-20 11:06:24 C 14 50 54.067 +27 21 04.21 V T08
2025-05-21 08:07:59 C 14 49 08.440 +26 53 52.98 V 703
2025-05-21 08:11:13 C 14 49 08.116 +26 53 48.34 V 703
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1989-03-26 14:00:00 56566 2 Hz 2380 -1 -1
1989-03-26.583333 5656600 200 Hz 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)