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8740 Vaclav (1998 AS8)
Classification: Main-belt Asteroid          SPK-ID: 2008740
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006711159628665663 5.1289e-08  
a 2.890420947613719 2.5752e-08 AU
q 2.871022871240244 1.4686e-07 AU
i 1.874679402895755 5.3446e-06 deg
node 180.1902246906955 0.00015923 deg
peri 210.5086314232829 0.00046581 deg
M 221.7144142587823 0.00043874 deg
tp 2457489.968586556028
(2016-Apr-11.46858656)
0.0021907 JED
period 1794.89922850425
4.91
2.3987e-05
6.567e-08
d
yr
n .2005683629938379 2.6804e-09 deg/d
Q 2.909819023987194 2.5924e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1367  
   data-arc span      8597 days (23.54 yr)  
   first obs. used      1990-12-12  
   last obs. used      2014-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5001  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:20:09  

Additional Information
 Earth MOID = 1.86846 AU 
 T_jup = 3.290 
[ 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 13.1 mag n/a MPO263427  

8740 Vaclav (1998 AS8)          Discovered 1998-Jan-12 by Klet at Klet (046)
Reference: 19980511/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 AS8 = 1991 UY2 = 1991 VO17 = 1993 BN13 = 1996 VN38 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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