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
2025-06-09 07:01:06 C 14 29 17.894 +17 42 52.74 V G96
2025-06-09 07:09:43 C 14 29 17.754 +17 42 43.24 V G96
2025-06-09 07:18:19 C 14 29 17.592 +17 42 33.26 V G96
2025-06-09 07:26:58 C 14 29 17.437 +17 42 23.54 V G96
2025-06-18 08:22:31 C 14 28 32.727 +13 49 30.00 X F51
2025-06-18 08:23:28 C 14 28 32.728 +13 49 29.04 X F51
2025-06-18 08:39:03 C 14 28 32.757 +13 49 12.90 X F51
2025-06-18 08:40:00 C 14 28 32.757 +13 49 11.90 X F51
2025-06-18 08:55:30 C 14 28 32.790 +13 48 55.81 X F51
2025-06-18 08:56:26 C 14 28 32.792 +13 48 54.88 X F51
2025-06-18 09:11:54 C 14 28 32.821 +13 48 38.84 X F51
2025-06-18 09:12:49 C 14 28 32.826 +13 48 37.90 X F51
2025-06-24 08:40:22 C 14 30 06.548 +11 24 49.06 X F51
2025-06-24 08:58:59 C 14 30 06.782 +11 24 30.83 X F51
2025-06-24 09:17:39 C 14 30 07.020 +11 24 12.43 X F51
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)