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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1561742097784385 5.7559e-08  
a 2.215591301533439 1.0128e-08 AU
q 1.869573080824472 1.2858e-07 AU
i 5.150658379612192 6.6177e-06 deg
node 46.18501508739899 5.9028e-05 deg
peri 282.0542130415319 6.343e-05 deg
M 55.07196316375861 2.5324e-05 deg
tp 2456816.227316062503
(2014-Jun-07.72731606)
8.4372e-05 JED
period 1204.572388680603
3.30
8.2597e-06
2.261e-08
d
yr
n .2988612418671796 2.0493e-09 deg/d
Q 2.561609522242406 1.171e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      22508 days (61.62 yr)  
   first obs. used      1953-02-15  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50701  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 13:54:47  

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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