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
2022-08-05 12:56:14 C 19 56 05.801 +00 32 33.83 V P07
2022-08-05 14:20:53 C 19 55 52.788 +00 31 06.85 V P07
2022-08-05 15:41:18 C 19 55 40.342 +00 29 43.37 V P07
2022-08-05 17:02:40 C 19 55 27.821 +00 28 19.49 V P07
2022-08-06 22:15:11 C 19 51 07.97 -00 03 07.8 V G33
2022-08-06 22:16:52 C 19 51 07.72 -00 03 10.6 V G33
2022-08-06 22:20:14 C 19 51 07.20 -00 03 14.2 V G33
2022-08-06 22:21:55 C 19 51 06.92 -00 03 15.7 V G33
2022-08-06 22:23:34 C 19 51 06.66 -00 03 17.7 V G33
2022-08-07 05:45:09 C 19 50 00.71 -00 11 17.6 q U55
2022-08-07 05:53:46 C 19 49 59.55 -00 11 27.1 q U55
2022-08-07 06:02:45 C 19 49 58.10 -00 11 37.2 q U55
2022-08-08 02:45:22 C 19 46 51.182 -00 34 08.54 V W68
2022-08-08 02:47:19 C 19 46 50.866 -00 34 10.92 V W68
2022-08-08 02:51:13 C 19 46 50.246 -00 34 15.89 V W68
2022-08-08 03:02:15 C 19 46 48.538 -00 34 27.70 V W68
2022-08-08 19:59:19 C 19 44 14.50 -00 54 23.0 X L76
2022-08-08 20:10:51 C 19 44 12.64 -00 54 35.4 X L76
2022-08-08 20:22:48 C 19 44 10.81 -00 54 49.0 X L76
2022-08-12 22:05:50 C 19 29 15.29 -02 54 27.8 V G33
2022-08-12 22:10:45 C 19 29 14.49 -02 54 34.1 V G33
2022-08-13 10:27:11 C 19 27 21.074 -03 10 15.71 V T05
2022-08-13 10:32:24 C 19 27 20.246 -03 10 22.26 V T05
2022-08-13 10:56:54 C 19 27 16.351 -03 10 54.01 V T05
2022-08-13 11:10:44 C 19 27 14.136 -03 11 11.72 V T05
2022-08-13 20:22:52 C 19 25 51.13 -03 23 22.0 V K83
2022-08-13 20:27:40 C 19 25 50.34 -03 23 28.1 V K83
2022-08-13 22:20:23 C 19 25 32.49 -03 25 56.2 X L63
2022-08-13 22:35:45 C 19 25 30.05 -03 26 16.0 X L63
2022-08-15 09:13:04 C 19 20 13.342 -04 12 11.70 V T08
2022-08-15 09:17:39 C 19 20 12.598 -04 12 18.07 V T08
2022-08-15 09:54:36 C 19 20 06.725 -04 13 07.28 V T08
2023-06-23 23:32:43 C 19 07 05.297 +04 45 29.84 V M22
2023-06-23 23:34:51 C 19 07 05.136 +04 45 29.88 V M22
2023-06-24 00:00:51 C 19 07 02.393 +04 45 27.36 V M22
2023-06-24 00:05:05 C 19 07 01.978 +04 45 28.15 V M22
2024-05-14 14:55:40 C 18 27 05.242 +07 26 05.96 Z Q62
2024-05-14 15:15:15 C 18 27 03.629 +07 26 16.33 Z Q62
2024-05-14 15:34:01 C 18 27 02.069 +07 26 26.23 Z Q62
2024-06-01 09:23:55 C 17 43 55.330 +09 43 21.46 X F52
2024-06-01 09:40:00 C 17 43 53.384 +09 43 22.80 X F52
2024-06-01 09:56:03 C 17 43 51.444 +09 43 24.12 X F52
2024-06-02 10:32:40 C 17 40 58.267 +09 44 54.02 V T08
2024-06-02 10:35:19 C 17 40 57.929 +09 44 54.42 V T08
2024-06-02 10:39:59 C 17 40 57.374 +09 44 54.60 V T08
2024-06-02 11:15:19 C 17 40 53.035 +09 44 56.51 V T08
2024-06-03 12:01:20 C 17 37 57.732 +09 45 35.82 V T05
2024-06-03 12:05:21 C 17 37 57.269 +09 45 35.89 V T05
2024-06-03 12:41:50 C 17 37 52.769 +09 45 36.58 V T05
2024-06-03 13:24:20 C 17 37 47.575 +09 45 36.36 V T05
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)