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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330986780177237 6.1784e-08  
a 2.283252350469517 1.4448e-08 AU
q 1.979354481041165 1.4614e-07 AU
i 5.963376732594944 6.4613e-06 deg
node 194.3920657507692 4.8887e-05 deg
peri 161.674894324995 5.3373e-05 deg
M 359.7604121557287 2.0509e-05 deg
tp 2457001.338670903631
(2014-Dec-09.83867090)
7.1791e-05 JED
period 1260.170465765539
3.45
1.1962e-05
3.275e-08
d
yr
n .2856756365745362 2.7116e-09 deg/d
Q 2.58715021989787 1.6371e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      869  
   data-arc span      8815 days (24.13 yr)  
   first obs. used      1990-09-16  
   last obs. used      2014-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56065  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:57:47  

Additional Information
 Earth MOID = .976464 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 14.5 mag n/a MPO302246  

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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