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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554834774731726 5.5694e-08  
a 2.216653953960315 8.5757e-09 au
q 1.872000888843908 1.2327e-07 au
i 5.151588782466764 5.3358e-06 deg
node 46.13759783923509 5.1147e-05 deg
peri 282.3256101647284 5.4697e-05 deg
M 234.0587150468323 2.1505e-05 deg
tp 2458022.207083412419
(2017-Sep-25.70708341)
7.28e-05 JED
period 1205.439106683122
3.30
6.9953e-06
1.915e-08
d
yr
n .298646358828173 1.7331e-09 deg/d
Q 2.561307019076723 9.909e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1591  
   data-arc span      23066 days (63.15 yr)  
   first obs. used      1953-02-15  
   last obs. used      2016-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49245  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:39:57  

Additional Information
 Earth MOID = .868587 au 
 Jupiter MOID = 2.76231 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 13.6 mag n/a MPO365276  

2558 Viv (1981 SP1)          Discovered 1981-Sep-26 by Thomas, N. G. at Flagstaff (AM)
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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