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2558 Viv (1981 SP1)
Classification: Main-belt Asteroid          SPK-ID: 2002558
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1562839089533639 5.8228e-08  
a 2.215904141990631 1.3543e-08 AU
q 1.869593980814385 1.3139e-07 AU
i 5.15048668274019 6.8449e-06 deg
node 46.1873201809269 6.0925e-05 deg
peri 282.071613568731 6.6747e-05 deg
M 355.2852544811039 3.3418e-05 deg
tp 2456816.279042155086
(2014-Jun-07.77904216)
0.00011193 JED
period 1204.827525274564
3.30
1.1045e-05
3.024e-08
d
yr
n .2987979544358109 2.7392e-09 deg/d
Q 2.562214303166876 1.5659e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1078  
   data-arc span      22041 days (60.34 yr)  
   first obs. used      1953-02-15  
   last obs. used      2013-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51366  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 17:42:28  

Additional Information
 Earth MOID = .865686 AU 
 T_jup = 3.632 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO263368  

2558 Viv (1981 SP1)          Discovered 1981-Sep-26 by Thomas, N. G. at Flagstaff (AM) (688)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 SP1 = 1968 UR1 = 1971 QH1 = 1977 JH = 1978 VS7 = 1981 TN4 = A915 TC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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