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
2001-05-11 20:59:01 C 14 59 02.39 +32 59 39.2 610
2001-05-11 21:04:01 C 14 59 01.72 +32 59 31.8 610
2001-05-11 21:09:00 C 14 59 01.05 +32 59 24.5 610
2001-05-11 21:14:00 C 14 59 00.38 +32 59 17.2 610
2001-05-11 21:19:01 C 14 58 59.71 +32 59 09.9 610
2001-05-12 21:19:11 C 14 56 05.83 +32 23 12.5 947
2001-05-12 21:34:17 C 14 56 03.99 +32 22 50.4 947
2001-05-13 21:34:06 C 14 53 20.06 +31 47 12.0 151
2001-05-13 21:35:59 C 14 53 19.84 +31 47 08.9 151
2001-05-13 21:38:30 C 14 53 19.55 +31 47 05.5 151
2001-05-16 21:15:10 C 14 46 06.59 +30 02 11.3 610
2001-05-16 21:22:01 C 14 46 05.90 +30 02 01.2 610
2001-05-16 21:29:01 C 14 46 05.21 +30 01 51.1 610
2001-05-16 22:13:02 C 14 46 00.87 +30 00 47.4 610
2001-05-16 22:18:02 C 14 46 00.38 +30 00 40.2 610
2001-05-16 22:23:01 C 14 45 59.89 +30 00 32.9 610
2001-05-16 22:28:01 C 14 45 59.40 +30 00 25.7 610
2001-05-16 22:33:02 C 14 45 58.91 +30 00 18.5 610
2001-05-23 21:26:13 C 14 33 45.57 +26 05 50.7 947
2001-05-23 21:35:58 C 14 33 44.99 +26 05 37.6 947
2001-05-24 21:21:42 C 14 32 27.02 +25 33 31.2 947
2001-05-24 21:43:32 C 14 32 25.66 +25 33 01.7 947
2001-05-25 21:07:11 C 14 31 14.41 +25 01 40.1 118
2001-05-25 21:08:44 C 14 31 14.37 +25 01 37.1 118
2001-05-25 21:13:56 C 14 31 14.08 +25 01 30.6 118
2001-05-25 22:25:47 C 14 31 10.49 +24 59 54.7 947
2001-05-26 06:07:43 C 14 30 48.23 +24 49 43.2 c 699
2001-05-26 06:29:05 C 14 30 47.21 +24 49 15.7 c 699
2001-05-26 06:50:33 C 14 30 46.08 +24 48 47.5 c 699
2001-05-26 07:12:04 C 14 30 44.92 +24 48 18.9 c 699
2002-06-01 03:52:56 C 10 55 18.35 +26 29 34.1 d 291
2002-06-01 03:55:21 C 10 55 18.89 +26 29 31.4 d 291
2002-06-01 03:57:48 C 10 55 19.40 +26 29 27.9 d 291
2002-06-01 04:00:38 C 10 55 19.99 +26 29 24.6 d 291
2002-06-01 04:03:11 C 10 55 20.55 +26 29 21.8 d 291
2009-07-10 08:47:21 C 23 52 13.59 +10 29 02.8 o H55
2009-07-10 08:52:52 C 23 52 14.20 +10 29 07.1 o H55
2009-07-10 08:58:18 C 23 52 14.73 +10 29 09.2 o H55
2009-07-10 09:03:48 C 23 52 15.34 +10 29 11.8 o H55
2009-07-10 09:09:19 C 23 52 15.93 +10 29 15.5 o H55
2009-07-10 09:14:24 C 23 52 16.48 +10 29 18.6 o H55
2009-07-30 10:44:42 C 01 01 03.10 +14 57 46.4 r 703
2009-07-30 10:46:06 C 01 01 03.39 +14 57 47.0 r 703
2009-07-30 10:47:33 C 01 01 03.64 +14 57 48.0 r 703
2009-07-30 10:48:59 C 01 01 03.90 +14 57 48.4 r 703
2009-08-01 08:09:30 C 01 10 08.58 +15 22 24.5 r 703
2009-08-01 08:19:39 C 01 10 10.66 +15 22 28.5 r 703
2009-08-01 08:29:34 C 01 10 12.64 +15 22 33.6 r 703
2009-08-01 08:39:28 C 01 10 14.66 +15 22 40.9 r 703
2009-08-03 08:54:49 C 01 20 41.12 +15 48 14.0 18.7 c 704
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)