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30823 (1990 SY15)
Classification: Main-belt Asteroid          SPK-ID: 2030823
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331821216177761 9.4726e-08  
a 2.283426044510038 1.8762e-08 AU
q 1.979314519344904 2.1324e-07 AU
i 5.963044648625393 9.466e-06 deg
node 194.3966205322799 5.4943e-05 deg
peri 161.6774395258147 6.2693e-05 deg
M 302.6279114857024 3.4214e-05 deg
tp 2457001.352393414092
(2014-Dec-09.85239341)
0.00012116 JED
period 1260.314266074761
3.45
1.5533e-05
4.253e-08
d
yr
n .28564304133541 3.5204e-09 deg/d
Q 2.587537569675171 2.126e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      784  
   data-arc span      8321 days (22.78 yr)  
   first obs. used      1990-09-16  
   last obs. used      2013-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58264  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 22:47:15  

Additional Information
 Earth MOID = .97486 AU 
 T_jup = 3.585 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO266108  

30823 (1990 SY15)          Discovered 1990-Sep-16 by Holt, H. E. at Palomar (675)
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 SY15 = 1997 TO8 = 1999 CR79 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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