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
2025-04-20 22:23:13 C 17 13 13.86 +40 01 45.1 V M32
2025-04-20 22:26:42 C 17 13 12.59 +40 01 44.2 V M32
2025-04-20 22:31:01 C 17 13 11.05 +40 01 43.2 V M32
2025-04-20 22:35:45 C 17 13 09.33 +40 01 42.0 V M32
2025-04-20 22:40:05 C 17 13 07.80 +40 01 41.4 V M32
2025-04-21 10:50:07 C 17 08 49.675 +39 57 55.12 V 703
2025-04-21 10:53:41 C 17 08 48.476 +39 57 53.68 V 703
2025-04-21 10:57:12 C 17 08 47.202 +39 57 52.74 V 703
2025-04-21 11:00:41 C 17 08 45.881 +39 57 51.59 V 703
2025-04-21 21:59:31 B 17 05 00.82 +39 53 18.4 X L99
2025-04-21 22:03:23 B 17 04 59.48 +39 53 17.4 X L99
2025-04-21 22:07:15 B 17 04 58.04 +39 53 14.9 X L99
2025-04-21 22:10:38 B 17 04 56.88 +39 53 13.7 X L99
2025-04-22 10:46:12 C 17 00 41.371 +39 48 04.75 V T05
2025-04-22 10:48:59 C 17 00 40.404 +39 48 03.60 V T05
2025-04-22 10:56:54 C 17 00 37.639 +39 48 00.50 V T05
2025-04-22 11:14:02 C 17 00 31.666 +39 47 53.70 V T05
2025-04-22 20:50:26 C 16 57 19.77 +39 42 52.5 X D04
2025-04-22 21:01:52 C 16 57 15.96 +39 42 48.3 X D04
2025-04-22 21:18:43 C 16 57 10.23 +39 42 40.5 X D04
2025-04-22 21:35:34 C 16 57 04.50 +39 42 32.6 X D04
2025-04-22 23:55:19 C 16 56 19.534 +39 41 26.27 V R17
2025-04-23 00:15:51 C 16 56 12.626 +39 41 17.41 V R17
2025-04-23 00:31:36 C 16 56 05.29 +39 41 04.7 V M32
2025-04-23 00:34:17 C 16 56 04.37 +39 41 03.1 V M32
2025-04-23 00:36:23 C 16 56 05.676 +39 41 08.45 V R17
2025-04-23 00:36:59 C 16 56 03.45 +39 41 01.8 V M32
2025-04-23 00:39:40 C 16 56 02.56 +39 41 00.4 V M32
2025-04-23 00:42:22 C 16 56 01.65 +39 40 58.7 V M32
2025-04-23 00:44:37 C 16 56 00.88 +39 40 57.8 V M32
2025-04-23 00:56:57 C 16 55 58.730 +39 40 59.34 V R17
2025-04-23 10:39:45 C 16 52 45.743 +39 35 49.31 V 703
2025-04-23 10:43:21 C 16 52 44.533 +39 35 47.26 V 703
2025-04-23 10:46:54 C 16 52 43.338 +39 35 45.38 V 703
2025-04-23 10:50:24 C 16 52 42.150 +39 35 43.44 V 703
2025-04-24 11:40:05 C 16 44 50.518 +39 20 50.68 V T05
2025-04-24 11:44:38 C 16 44 49.034 +39 20 47.72 V T05
2025-04-24 11:48:34 C 16 44 47.758 +39 20 45.31 V T05
2025-04-24 12:24:31 C 16 44 36.065 +39 20 22.92 V T05
2025-04-24 14:17:16 C 16 43 59.335 +39 19 08.76 V T08
2025-04-24 14:41:03 C 16 43 51.629 +39 18 52.13 V T08
2025-04-24 14:58:23 C 16 43 46.022 +39 18 39.89 V T08
2025-04-24 15:07:52 C 16 43 42.960 +39 18 32.83 V T08
2025-04-25 06:25:48 C 16 39 05.76 +39 07 37.2 V U55
2025-04-25 06:29:25 C 16 39 04.51 +39 07 34.3 V U55
2025-04-25 06:32:46 C 16 39 03.62 +39 07 31.4 V U55
2025-04-25 10:41:57 C 16 37 45.930 +39 04 53.54 V 703
2025-04-25 10:45:25 C 16 37 44.846 +39 04 51.13 V 703
2025-04-25 10:48:50 C 16 37 43.763 +39 04 48.65 V 703
2025-04-25 10:52:14 C 16 37 42.697 +39 04 45.95 V 703
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)