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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006586017412113426 5.0199e-08  
a 2.890750502317089 2.513e-08 AU
q 2.871711969174754 1.4484e-07 AU
i 1.874698884917464 5.2663e-06 deg
node 180.1816567935167 0.00015831 deg
peri 209.9751118232619 0.00046954 deg
M 262.3573561416609 0.00044313 deg
tp 2457487.413001312153
(2016-Apr-08.91300131)
0.002212 JED
period 1795.206208536156
4.92
2.3409e-05
6.409e-08
d
yr
n .200534065829435 2.6149e-09 deg/d
Q 2.909789035459426 2.5295e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      8927 days (24.44 yr)  
   first obs. used      1990-12-12  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50561  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:02:48  

Additional Information
 Earth MOID = 1.8706 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
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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