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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006711170954119335 5.4649e-08  
a 2.890420925752717 2.7101e-08 AU
q 2.871022816790627 1.5524e-07 AU
i 1.874676233563284 5.7915e-06 deg
node 180.1901214917893 0.0001607 deg
peri 210.5090448096084 0.00048839 deg
M 221.7141132970687 0.00046129 deg
tp 2457489.970079278366
(2016-Apr-11.47007928)
0.0023025 JED
period 1794.899208141319
4.91
2.5244e-05
6.911e-08
d
yr
n .2005683652692635 2.8208e-09 deg/d
Q 2.909819034714808 2.7283e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1357  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1990-12-12  
   last obs. used      2014-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53519  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:53:13  

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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