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312963 (1997 YO8)
Classification: Main-belt Asteroid          SPK-ID: 2312963
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2183179964190612 4.9669e-08  
a 2.756069201607623 2.3088e-08 au
q 2.154369695520365 1.4108e-07 au
i 15.8391358807005 5.626e-06 deg
node 104.3167413953061 2.4185e-05 deg
peri 20.8494508238533 2.9226e-05 deg
M 312.8499565389117 1.9721e-05 deg
tp 2459219.383588656080
(2021-Jan-04.88358866)
9.3289e-05 TDB
period 1671.219921169717
4.58
2.1e-05
5.749e-08
d
yr
n .2154115059543028 2.7068e-09 deg/d
Q 3.357768707694881 2.8128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      221  
   data-arc span      7982 days (21.85 yr)  
   first obs. used      1997-12-21  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:13:58  

Additional Information
 Earth MOID = 1.17694 au 
 Jupiter MOID = 1.78135 au 
 T_jup = 3.254 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO455307  

312963 (1997 YO8)          Discovered 1997-Dec-21 by Spacewatch at Kitt Peak
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 1997 YO8 = 1998 AF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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