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
2022-07-07 11:37:37 C 21 08 01.644 +05 36 56.19 U F52
2022-07-07 11:54:09 C 21 08 00.699 +05 36 57.11 U F52
2022-07-07 12:10:43 C 21 07 59.756 +05 36 57.56 U F52
2022-07-23 05:19:41 C 20 37 47.184 +04 29 10.54 V W68
2022-07-23 05:25:08 C 20 37 46.560 +04 29 08.02 V W68
2022-07-23 05:33:51 C 20 37 45.564 +04 29 04.20 V W68
2022-07-23 05:49:24 C 20 37 43.793 +04 28 57.07 V W68
2022-07-24 07:59:15 C 20 34 49.630 +04 16 07.21 U I41
2022-07-24 08:38:35 C 20 34 44.969 +04 15 47.59 U I41
2022-07-24 09:55:04 C 20 34 35.911 +04 15 09.11 U I41
2022-07-24 09:55:46 C 20 34 35.830 +04 15 08.78 U I41
2022-07-24 22:36:27 C 20 33 09.70 +04 08 35.3 V M26
2022-07-24 22:43:37 C 20 33 08.81 +04 08 31.6 V M26
2022-07-24 22:50:46 C 20 33 07.98 +04 08 28.2 V M26
2022-07-27 10:32:22 C 20 25 59.252 +03 34 06.43 U F52
2022-07-27 10:54:26 C 20 25 56.382 +03 33 52.56 U F52
2022-07-27 11:05:24 C 20 25 54.960 +03 33 45.59 U F52
2022-07-27 22:54:40 C 20 24 26.79 +03 26 00.2 V 130
2022-07-27 23:00:02 C 20 24 26.10 +03 25 57.0 V 130
2022-07-27 23:05:24 C 20 24 25.40 +03 25 53.3 V 130
2022-07-27 23:10:46 C 20 24 24.69 +03 25 50.0 V 130
2022-07-28 01:25:32 C 20 24 07.202 +03 24 20.95 V A16
2022-07-28 01:43:43 C 20 24 04.798 +03 24 09.18 V A16
2022-07-28 02:07:03 C 20 24 01.790 +03 23 52.37 V A16
2022-07-28 21:12:13 C 20 21 37.13 +03 10 56.1 V G34
2022-07-28 21:15:20 C 20 21 36.72 +03 10 54.1 V G34
2022-07-28 21:18:26 C 20 21 36.34 +03 10 51.9 V G34
2022-07-28 21:21:32 C 20 21 35.92 +03 10 49.6 V G34
2022-07-28 21:24:39 C 20 21 35.48 +03 10 47.4 V G34
2022-07-28 21:27:45 C 20 21 35.09 +03 10 45.2 V G34
2022-07-28 21:30:52 C 20 21 34.69 +03 10 43.3 V G34
2022-07-29 06:15:16 C 20 20 27.055 +03 04 39.25 Z U76
2022-07-29 06:32:45 C 20 20 24.689 +03 04 26.80 Z U76
2022-07-29 06:49:56 C 20 20 22.373 +03 04 14.45 Z U76
2022-07-31 05:26:00 C 20 14 10.615 +02 29 24.47 V W68
2022-07-31 05:30:33 C 20 14 09.962 +02 29 20.87 V W68
2022-07-31 05:37:45 C 20 14 08.945 +02 29 14.86 V W68
2022-07-31 05:53:32 C 20 14 06.730 +02 29 02.33 V W68
2022-08-01 12:24:38 C 20 09 56.90 +02 03 19.1 V D29
2022-08-01 13:07:55 C 20 09 50.69 +02 02 42.0 V D29
2022-08-03 12:03:44 C 20 03 10.870 +01 20 29.58 V T08
2022-08-03 12:08:20 C 20 03 10.198 +01 20 25.22 V T08
2022-08-03 12:16:19 C 20 03 08.993 +01 20 17.63 V T08
2022-08-03 12:41:22 C 20 03 05.297 +01 19 53.98 V T08
2022-08-03 21:58:48 C 20 01 46.10 +01 10 52.2 X G02
2022-08-03 22:05:51 C 20 01 45.03 +01 10 45.2 X G02
2022-08-03 22:12:54 C 20 01 43.99 +01 10 38.6 X G02
2022-08-05 10:49:42 C 19 56 22.937 +00 34 25.61 V T05
2022-08-05 11:00:51 C 19 56 21.204 +00 34 14.16 V T05
2022-08-05 11:15:19 C 19 56 18.994 +00 33 59.54 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)