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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1561742032537452 5.7035e-08  
a 2.21559130428041 9.1593e-09 AU
q 1.869573097598491 1.2691e-07 AU
i 5.150658168065585 6.5974e-06 deg
node 46.18501799683615 5.4483e-05 deg
peri 282.0542133298101 5.8912e-05 deg
M 55.0719580163794 2.353e-05 deg
tp 2456816.227332943109
(2014-Jun-07.72733294)
7.8553e-05 JED
period 1204.572390920812
3.30
7.4696e-06
2.045e-08
d
yr
n .298861241311371 1.8533e-09 deg/d
Q 2.561609510962329 1.059e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      22601 days (61.88 yr)  
   first obs. used      1953-02-15  
   last obs. used      2015-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49524  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:57:47  

Additional Information
 Earth MOID = .867463 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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