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
2013-05-15 22:20:35 C 14 56 40.78 +30 00 26.4 u 557
2013-05-16 00:37:40 C 14 56 25.48 +29 57 18.4 u 557
2013-05-16 21:46:35 C 14 54 15.28 +29 28 32.8 u 557
2013-05-16 22:34:07 C 14 54 10.24 +29 27 28.5 u 557
2013-05-17 00:09:06 C 14 54 00.24 +29 25 18.7 u 557
2013-05-17 01:25:44 C 14 53 52.24 +29 23 32.8 u 557
2013-05-18 20:09:15 C 14 49 51.39 +28 25 47.0 u 557
2013-05-18 20:29:28 C 14 49 49.50 +28 25 20.0 u 557
2013-05-18 21:36:53 C 14 49 43.14 +28 23 49.9 u 557
2013-05-18 22:01:10 C 14 49 40.84 +28 23 17.1 u 557
2013-05-18 23:08:18 C 14 49 34.54 +28 21 46.7 u 557
2013-05-19 00:09:25 C 14 49 28.84 +28 20 23.6 u 557
2013-05-19 01:17:35 C 14 49 22.53 +28 18 50.5 u 557
2013-05-20 05:18:48 C 14 47 00.78 +27 41 25.7 u 703
2013-05-20 05:26:05 C 14 46 59.98 +27 41 15.6 u 703
2013-05-20 05:33:22 C 14 46 59.34 +27 41 06.0 u 703
2013-05-20 05:40:37 C 14 46 58.72 +27 40 56.3 u 703
2013-05-20 20:43:39 C 14 45 46.40 +27 20 45.3 q C77
2013-05-20 21:01:11 C 14 45 44.85 +27 20 22.6 q C77
2013-05-20 21:10:43 C 14 45 44.06 +27 20 09.4 q C77
2013-05-31 03:54:20 C 14 31 51.24 +22 04 10.1 t W71
2013-05-31 03:58:50 C 14 31 51.10 +22 04 05.2 t W71
2013-06-04 06:42:15 C 14 28 51.49 +20 05 15.9 u 703
2013-06-04 06:55:44 C 14 28 51.16 +20 05 00.0 u 703
2013-06-04 07:09:18 C 14 28 50.80 +20 04 44.1 u 703
2013-06-04 07:22:53 C 14 28 50.34 +20 04 26.8 u 703
2013-06-11 07:06:29 C 14 26 21.48 +16 52 32.4 u 703
2013-06-11 07:13:42 C 14 26 21.40 +16 52 23.8 u 703
2013-06-11 07:21:02 C 14 26 21.33 +16 52 15.9 u 703
2013-06-11 07:28:22 C 14 26 21.33 +16 52 07.1 u 703
2014-06-09 06:31:13 C 11 35 54.193 +22 30 12.94 L F51
2014-06-09 06:51:41 C 11 35 57.572 +22 29 47.45 L F51
2014-06-09 22:50:06 C 11 38 39.17 +22 10 20.3 u 807
2014-06-09 23:00:20 C 11 38 40.85 +22 10 08.1 u 807
2014-06-09 23:10:23 C 11 38 42.52 +22 09 55.9 u 807
2015-07-06 06:34:15 C 11 29 17.613 +14 10 39.45 L F51
2015-07-06 06:45:29 C 11 29 19.432 +14 10 29.03 L F51
2015-07-06 06:51:01 C 11 29 20.371 +14 10 24.07 L F51
2020-06-27 13:54:03 C 01 15 26.897 +11 15 20.99 U F52
2020-06-27 14:01:33 C 01 15 28.186 +11 15 26.16 U F52
2020-06-27 14:09:04 C 01 15 29.486 +11 15 31.31 U F52
2021-07-08 09:48:37 C 23 48 55.11 +10 03 05.0 V 703
2021-07-08 09:55:16 C 23 48 55.79 +10 03 08.1 V 703
2021-07-08 10:01:56 C 23 48 56.48 +10 03 12.7 V 703
2021-07-08 10:08:35 C 23 48 57.17 +10 03 16.4 V 703
2021-07-09 09:25:37 C 23 51 29.55 +10 16 08.0 V 703
2021-07-09 09:33:16 C 23 51 30.26 +10 16 12.6 V 703
2021-07-09 09:40:56 C 23 51 31.12 +10 16 16.6 V 703
2021-07-09 09:48:35 C 23 51 31.91 +10 16 20.5 V 703
2021-07-18 13:03:05 C 00 18 02.29 +12 18 32.7 V T08
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)