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
2000-06-02 23:55:01 C 17 33 34.61 +10 05 20.2 118
2000-06-03 00:16:37 C 17 33 31.99 +10 05 19.4 118
2000-06-08 00:28:21 C 17 19 15.51 +09 55 15.3 c 621
2000-06-08 00:30:40 C 17 19 15.23 +09 55 15.0 c 621
2000-06-08 00:32:59 C 17 19 14.94 +09 55 14.4 c 621
2000-06-08 00:35:17 C 17 19 14.65 +09 55 14.1 c 621
2000-06-08 00:50:13 C 17 19 12.85 +09 55 11.6 c 621
2000-06-08 00:52:32 C 17 19 12.59 +09 55 11.3 c 621
2000-06-08 01:15:41 C 17 19 09.79 +09 55 07.3 c 621
2000-06-08 01:18:00 C 17 19 09.53 +09 55 06.9 c 621
2000-06-08 01:29:30 C 17 19 08.15 +09 55 04.8 c 621
2000-06-08 01:31:49 C 17 19 07.86 +09 55 04.5 c 621
2000-06-20 21:14:13 C 16 45 52.10 +08 08 04.3 118
2000-06-20 21:34:05 C 16 45 50.16 +08 07 54.3 118
2000-06-21 21:47:08 C 16 43 34.15 +07 55 24.7 118
2000-06-21 22:04:48 C 16 43 32.45 +07 55 16.0 118
2000-06-25 05:28:13 C 16 36 34.40 +07 11 14.6 d 858
2000-06-25 05:45:37 C 16 36 32.89 +07 11 04.7 d 858
2001-04-11 11:34:17 C 18 50 32.51 +44 47 27.3 670
2001-04-11 12:06:34 C 18 50 13.93 +44 48 02.2 670
2001-04-13 09:27:07 C 18 25 31.97 +45 21 48.4 16.9 c 704
2001-04-13 09:46:15 C 18 25 21.45 +45 21 59.8 17.5 c 704
2001-04-13 10:05:27 C 18 25 10.88 +45 22 10.9 17.3 c 704
2001-04-13 10:24:35 C 18 25 00.34 +45 22 21.7 17.5 c 704
2001-04-13 10:43:45 C 18 24 49.81 +45 22 32.7 17.2 c 704
2001-04-15 10:27:29 C 18 00 02.63 +45 34 53.8 670
2001-04-15 12:32:56 C 17 58 57.25 +45 35 01.9 670
2001-04-23 20:31:47 C 16 33 50.04 +43 24 12.2 557
2001-04-23 20:33:19 C 16 33 49.53 +43 24 10.4 557
2001-04-23 20:34:50 C 16 33 49.00 +43 24 09.2 557
2001-04-23 20:36:22 C 16 33 48.47 +43 24 07.7 557
2001-04-23 22:50:39 C 16 33 01.07 +43 21 42.8 557
2001-04-23 22:52:10 C 16 33 00.52 +43 21 41.2 557
2001-04-24 05:13:03 C 16 30 51.35 +43 14 17.9 676
2001-04-25 05:05:34 C 16 22 55.70 +42 45 30.6 676
2001-04-30 20:26:19 C 15 45 17.94 +39 39 28.5 557
2001-04-30 20:31:39 C 15 45 16.66 +39 39 21.2 557
2001-04-30 20:33:26 C 15 45 16.23 +39 39 18.4 557
2001-04-30 20:44:06 C 15 45 13.64 +39 39 03.7 557
2001-05-01 23:42:25 C 15 39 02.06 +38 59 12.5 629
2001-05-01 23:43:55 C 15 39 01.75 +38 59 11.0 629
2001-05-01 23:50:11 C 15 39 00.27 +38 59 00.7 629
2001-05-03 06:23:28 C 15 32 30.06 +38 13 16.4 17.7 c 704
2001-05-03 06:41:08 C 15 32 26.24 +38 12 51.4 18.2 c 704
2001-05-03 06:58:51 C 15 32 22.38 +38 12 24.2 18.3 c 704
2001-05-03 07:16:20 C 15 32 18.63 +38 11 58.9 17.4 c 704
2001-05-03 07:34:14 C 15 32 14.75 +38 11 32.0 17.7 c 704
2001-05-10 23:01:37 C 15 01 50.00 +33 32 38.6 118
2001-05-10 23:06:36 C 15 01 49.27 +33 32 31.0 118
2001-05-10 23:22:05 C 15 01 47.18 +33 32 07.5 118
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)