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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08059679317870277 5.1548e-08  
a 2.297695076564489 1.3345e-08 au
q 2.112508221690897 1.1639e-07 au
i 5.097205367549911 5.9305e-06 deg
node 127.0166084545036 7.1362e-05 deg
peri 343.0139129243491 8.4196e-05 deg
M 100.6708029160325 4.4509e-05 deg
tp 2458644.755619097489
(2019-Jun-10.25561910)
0.00015626 TDB
period 1272.146177593547
3.48
1.1083e-05
3.034e-08
d
yr
n .282986347277318 2.4653e-09 deg/d
Q 2.48288193143808 1.442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      7729 days (21.16 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:11:22  

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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