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
2012-05-29 01:25:02 C 17 50 47.28 +09 42 29.9 c A24
2012-05-29 01:34:40 C 17 50 46.12 +09 42 31.5 c A24
2012-05-29 01:47:38 C 17 50 44.65 +09 42 33.4 c A24
2012-05-29 01:56:34 C 17 50 43.60 +09 42 34.5 c A24
2012-05-29 01:58:40 C 17 50 43.30 +09 42 34.9 c A24
2012-05-30 01:34:56 C 17 48 01.01 +09 46 12.6 c A24
2012-05-30 01:37:00 C 17 48 00.77 +09 46 12.3 c A24
2012-05-30 01:45:48 C 17 47 59.76 +09 46 13.6 c A24
2012-05-30 01:57:55 C 17 47 58.32 +09 46 15.2 c A24
2012-05-30 02:06:02 C 17 47 57.35 +09 46 16.1 c A24
2012-06-14 06:52:50 C 17 05 29.66 +09 09 23.6 19.3 c 704
2012-06-14 07:07:52 C 17 05 27.87 +09 09 18.9 19.5 c 704
2012-06-14 07:22:49 C 17 05 26.25 +09 09 12.7 19.1 c 704
2012-06-17 07:14:41 C 16 57 41.25 +08 42 28.2 o 691
2012-06-17 07:40:13 C 16 57 38.56 +08 42 17.3 o 691
2012-06-17 08:05:44 C 16 57 35.89 +08 42 07.1 o 691
2012-06-21 06:52:11 C 16 48 05.24 +07 58 42.2 18.9 c 704
2012-06-21 07:06:45 C 16 48 03.80 +07 58 35.3 19.6 c 704
2012-06-21 07:21:42 C 16 48 02.29 +07 58 27.9 19.2 c 704
2013-04-14 01:50:25 C 18 16 54.32 +41 39 01.4 q C95
2013-04-14 01:52:02 C 18 16 53.58 +41 39 02.1 q C95
2013-04-14 01:53:40 C 18 16 52.79 +41 39 03.2 q C95
2013-04-14 01:55:18 C 18 16 52.08 +41 39 04.0 q C95
2013-04-14 01:56:55 C 18 16 51.30 +41 39 05.2 q C95
2013-04-14 01:58:34 C 18 16 50.53 +41 39 06.2 q C95
2013-04-14 02:27:41 C 18 16 36.66 +41 39 23.7 c A24
2013-04-14 02:28:43 C 18 16 36.14 +41 39 23.4 c A24
2013-04-14 03:09:01 C 18 16 17.19 +41 39 46.9 c A24
2013-04-14 03:09:33 C 18 16 17.00 +41 39 47.2 c A24
2013-04-14 03:10:06 C 18 16 16.72 +41 39 47.8 c A24
2013-04-14 03:10:38 C 18 16 16.49 +41 39 48.0 c A24
2013-04-15 02:16:28 C 18 05 52.04 +41 50 15.6 q G40
2013-04-15 02:36:57 C 18 05 42.62 +41 50 25.0 q G40
2013-04-15 03:40:32 C 18 05 11.67 +41 50 41.7 c A24
2013-04-15 03:41:34 C 18 05 11.17 +41 50 42.0 c A24
2013-04-15 04:01:35 C 18 05 03.64 +41 51 01.2 q G40
2013-04-15 04:21:57 C 18 04 54.23 +41 51 09.3 q G40
2013-04-15 04:41:38 C 18 04 45.08 +41 51 16.6 q G40
2013-04-16 10:23:37 C 17 51 43.52 +41 58 11.6 u 703
2013-04-16 10:43:09 C 17 51 34.77 +41 58 15.0 u 703
2013-04-17 00:17:47 C 17 45 46.79 +41 59 07.9 17.4 u 089
2013-04-17 00:20:38 C 17 45 45.56 +41 59 08.1 17.2 u 089
2013-04-17 00:23:28 C 17 45 44.34 +41 59 08.2 17.4 u 089
2013-04-17 00:26:18 C 17 45 43.09 +41 59 08.4 17.3 u 089
2013-04-17 00:29:09 C 17 45 41.86 +41 59 08.8 17.5 u 089
2013-04-17 00:32:00 C 17 45 40.60 +41 59 08.9 17.6 u 089
2013-04-17 00:34:51 C 17 45 39.36 +41 59 08.8 17.1 u 089
2013-04-17 00:37:42 C 17 45 38.12 +41 59 09.2 17.4 u 089
2013-04-17 00:40:33 C 17 45 36.87 +41 59 09.5 17.3 u 089
2013-04-17 00:43:24 C 17 45 35.62 +41 59 09.5 17.1 u 089
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)