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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1561742090713098 5.6473e-08  
a 2.215591304657434 8.9823e-09 AU
q 1.869573085027288 1.2547e-07 AU
i 5.150660277730142 6.5334e-06 deg
node 46.18499964150873 5.2601e-05 deg
peri 282.0542350914932 5.7115e-05 deg
M 55.0719541036033 2.3369e-05 deg
tp 2456816.227345988356
(2014-Jun-07.72734599)
7.8033e-05 JED
period 1204.572391228284
3.30
7.3252e-06
2.006e-08
d
yr
n .2988612412350856 1.8174e-09 deg/d
Q 2.561609524287581 1.0385e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1391  
   data-arc span      22667 days (62.06 yr)  
   first obs. used      1953-02-15  
   last obs. used      2015-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47679  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:10:26  

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)
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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