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
2013-05-04 07:29:59 C 15 38 25.25 +36 16 51.6 18.0 c 704
2013-05-04 07:45:20 C 15 38 22.02 +36 16 31.8 17.9 c 704
2013-05-04 08:00:42 C 15 38 18.81 +36 16 11.9 17.8 c 704
2013-05-04 08:16:03 C 15 38 15.56 +36 15 52.1 17.9 c 704
2013-05-05 21:00:01 C 15 31 13.16 +35 27 50.3 u C75
2013-05-05 21:04:10 C 15 31 12.33 +35 27 44.8 u C75
2013-05-05 21:04:56 C 15 31 12.18 +35 27 43.1 u C75
2013-05-07 05:22:04 C 15 25 25.02 +34 44 57.2 t W71
2013-05-07 05:26:13 C 15 25 24.24 +34 44 51.9 t W71
2013-05-07 05:34:45 C 15 25 22.68 +34 44 40.5 t W71
2013-05-07 05:40:28 C 15 25 21.66 +34 44 33.1 t W71
2013-05-07 09:36:06 C 15 24 40.35 +34 39 22.7 u 703
2013-05-07 09:44:18 C 15 24 38.88 +34 39 11.3 u 703
2013-05-07 09:52:37 C 15 24 37.40 +34 39 00.0 u 703
2013-05-07 10:00:58 C 15 24 35.92 +34 38 48.2 u 703
2013-05-08 05:01:43 C 15 21 26.54 +34 13 12.7 t W71
2013-05-08 05:04:26 C 15 21 26.07 +34 13 09.2 t W71
2013-05-08 05:06:26 C 15 21 25.76 +34 13 06.0 t W71
2013-05-08 05:12:14 C 15 21 24.72 +34 12 58.4 t W71
2013-05-08 13:31:10 C 15 20 04.81 +34 01 50.7 o 300
2013-05-08 13:36:46 C 15 20 03.90 +34 01 43.1 o 300
2013-05-08 13:45:10 C 15 20 02.40 +34 01 32.1 o 300
2013-05-08 23:01:28 C 15 18 33.21 +33 48 51.6 u 557
2013-05-08 23:32:17 C 15 18 28.15 +33 48 10.0 u 557
2013-05-08 23:59:39 C 15 18 23.66 +33 47 32.7 u 557
2013-05-09 00:32:02 C 15 18 18.37 +33 46 48.5 u 557
2013-05-09 01:00:48 C 15 18 13.68 +33 46 09.1 u 557
2013-05-09 01:31:16 C 15 18 08.73 +33 45 27.2 u 557
2013-05-09 02:02:00 C 15 18 03.78 +33 44 44.7 u 557
2013-05-12 21:42:12 C 15 05 08.82 +31 39 43.5 u 557
2013-05-12 22:11:16 C 15 05 04.94 +31 39 04.4 u 557
2013-05-12 22:41:43 C 15 05 00.91 +31 38 22.8 u 557
2013-05-12 23:13:09 C 15 04 56.74 +31 37 40.0 u 557
2013-05-12 23:40:32 C 15 04 53.05 +31 37 02.7 u 557
2013-05-13 21:18:50 C 15 02 14.15 +31 07 24.6 u 557
2013-05-13 21:37:08 C 15 02 11.84 +31 06 59.6 u 557
2013-05-13 23:28:59 C 15 01 57.88 +31 04 29.9 i C91
2013-05-13 23:42:00 C 15 01 56.24 +31 04 11.9 i C91
2013-05-13 23:48:59 C 15 01 55.35 +31 04 02.3 i C91
2013-05-14 04:26:28 C 15 01 23.79 +30 57 46.0 q H15
2013-05-14 04:41:32 C 15 01 21.94 +30 57 26.0 q H15
2013-05-14 04:56:45 C 15 01 20.05 +30 57 05.4 q H15
2013-05-14 05:12:02 C 15 01 18.14 +30 56 45.1 q H15
2013-05-14 20:08:01 C 14 59 34.62 +30 36 11.0 u 557
2013-05-14 21:12:46 C 14 59 26.95 +30 34 43.7 u 557
2013-05-14 21:58:48 C 14 59 21.48 +30 33 41.4 u 557
2013-05-14 23:47:34 C 14 59 08.58 +30 31 12.4 u 557
2013-05-15 01:35:22 C 14 58 55.93 +30 28 42.6 u 557
2013-05-15 19:47:39 C 14 56 57.93 +30 03 52.7 u 557
2013-05-15 21:01:42 C 14 56 49.64 +30 02 13.4 u 557
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)