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
2025-04-16 12:06:47 C 17 53 29.364 +40 05 44.48 V T08
2025-04-16 12:10:50 C 17 53 27.708 +40 05 45.89 V T08
2025-04-16 12:43:51 C 17 53 13.958 +40 05 55.82 V T05
2025-04-16 12:45:41 C 17 53 13.157 +40 05 57.55 V T08
2025-04-16 12:47:06 C 17 53 12.590 +40 05 56.80 V T05
2025-04-16 12:54:00 C 17 53 09.720 +40 05 58.99 V T05
2025-04-16 13:01:47 C 17 53 06.415 +40 06 02.38 V T08
2025-04-16 13:01:49 C 17 53 06.444 +40 06 01.37 V T05
2025-04-16 22:36:06 C 17 49 17.765 +40 07 59.77 W M01
2025-04-16 22:38:36 C 17 49 16.745 +40 08 00.41 W M01
2025-04-16 22:41:06 C 17 49 15.725 +40 08 01.05 W M01
2025-04-17 20:56:36 C 17 40 30.61 +40 10 46.4 X D04
2025-04-17 21:04:07 C 17 40 27.67 +40 10 48.0 X D04
2025-04-17 21:11:37 C 17 40 24.71 +40 10 48.2 X D04
2025-04-17 22:23:53 C 17 39 56.41 +40 10 51.8 V M32
2025-04-17 22:26:17 C 17 39 55.46 +40 10 52.2 V M32
2025-04-17 22:29:52 C 17 39 54.02 +40 10 52.7 V M32
2025-04-17 22:34:39 C 17 39 52.18 +40 10 53.2 V M32
2025-04-17 22:35:02 C 17 39 52.03 +40 10 53.6 V M32
2025-04-17 22:35:25 C 17 39 51.88 +40 10 53.8 V M32
2025-04-17 22:35:49 C 17 39 51.69 +40 10 53.6 V M32
2025-04-17 22:36:14 C 17 39 51.55 +40 10 53.8 V M32
2025-04-17 22:36:38 C 17 39 51.35 +40 10 54.1 V M32
2025-04-17 22:37:01 C 17 39 51.24 +40 10 53.6 V M32
2025-04-17 22:37:50 C 17 39 50.96 +40 10 54.2 V M32
2025-04-17 22:38:14 C 17 39 50.79 +40 10 53.8 V M32
2025-04-17 22:38:30 B 17 39 50.35 +40 10 54.2 X L99
2025-04-17 22:38:36 C 17 39 50.58 +40 10 54.0 V M32
2025-04-17 22:39:25 C 17 39 50.28 +40 10 53.8 V M32
2025-04-17 22:42:50 B 17 39 48.65 +40 10 54.9 X L99
2025-04-17 22:47:10 B 17 39 46.92 +40 10 55.5 X L99
2025-04-18 00:12:12 B 17 39 12.87 +40 11 08.6 X L76
2025-04-18 00:22:40 B 17 39 08.71 +40 11 09.2 X L76
2025-04-18 00:33:08 B 17 39 04.52 +40 11 10.2 X L76
2025-04-18 21:34:33 C 17 31 04.55 +40 10 55.1 X D04
2025-04-18 21:49:11 C 17 30 58.94 +40 10 54.9 X D04
2025-04-18 21:53:30 C 17 30 57.27 +40 10 55.3 X D04
2025-04-18 22:15:10 C 17 30 48.91 +40 10 55.0 X D04
2025-04-18 22:25:16 C 17 30 45.590 +40 10 41.92 Z C23
2025-04-18 22:37:11 C 17 30 41.086 +40 10 41.84 Z C23
2025-04-18 23:03:25 C 17 30 31.087 +40 10 42.20 Z C23
2025-04-19 19:44:15 C 17 22 50.64 +40 08 06.7 X D04
2025-04-19 19:59:14 C 17 22 45.00 +40 08 04.6 X D04
2025-04-19 20:14:15 C 17 22 39.47 +40 08 02.7 X D04
2025-04-19 21:11:35 C 17 22 18.28 +40 07 50.9 V M32
2025-04-19 21:14:04 C 17 22 17.43 +40 07 50.4 V M32
2025-04-19 21:16:34 C 17 22 16.48 +40 07 50.0 V M32
2025-04-19 21:19:03 C 17 22 15.54 +40 07 49.4 V M32
2025-04-19 21:21:33 C 17 22 14.65 +40 07 49.4 V M32
2025-04-19 21:24:02 C 17 22 13.74 +40 07 49.3 V M32
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)