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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1557228647726684 5.6044e-08  
a 2.216501270456092 8.6865e-09 au
q 1.87134134284841 1.2429e-07 au
i 5.150216743322861 6.2229e-06 deg
node 46.16461432410468 5.1305e-05 deg
peri 282.1799852211666 5.5622e-05 deg
M 174.4941332391821 2.2742e-05 deg
tp 2456816.276889242686
(2014-Jun-07.77688924)
7.5547e-05 JED
period 1205.314562549467
3.30
7.0855e-06
1.94e-08
d
yr
n .2986772177036776 1.7558e-09 deg/d
Q 2.561661198063773 1.0039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1466  
   data-arc span      22951 days (62.84 yr)  
   first obs. used      1953-02-15  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48888  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:44:14  

Additional Information
 Earth MOID = .866599 au 
 Jupiter MOID = 2.76038 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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