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305608 (2008 YG157)
Classification: Main-belt Asteroid          SPK-ID: 2305608
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08059680627633603 5.8891e-08  
a 2.29769507497093 1.3778e-08 au
q 2.112508190131406 1.3509e-07 au
i 5.097203242906258 7.2109e-06 deg
node 127.016605354198 7.1593e-05 deg
peri 343.0139212822268 8.5239e-05 deg
M 100.6707991258136 4.5433e-05 deg
tp 2458644.755632861223
(2019-Jun-10.25563286)		 0.00015971 TDB
period 1272.146176270107
3.48		 1.1442e-05
3.133e-08		 d
yr
n .2829863475717144 2.5453e-09 deg/d
Q 2.482881959810453 1.4888e-08 au
   Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      7707 days (21.10 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:00:30  

Additional Information
 Earth MOID = 1.12969 au 
 Jupiter MOID = 2.58174 au 
 T_jup = 3.584 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.2   n/a MPO460267  

305608 (2008 YG157)          Discovered 2008-Dec-29 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2008 YG157 = 1999 FJ79 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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