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212920 (2007 YN21)
Classification: Main-belt Asteroid          SPK-ID: 2212920
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .061345081239263 5.3584e-08  
a 2.659415243030521 2.206e-08 au
q 2.496273198897879 1.5251e-07 au
i 5.042636191164217 4.1748e-06 deg
node 107.0340837801827 6.722e-05 deg
peri 291.9343733193706 8.014e-05 deg
M 9.105700598602263 4.2433e-05 deg
tp 2458960.432843446218
(2020-Apr-20.93284345)
0.00018663 TDB
period 1584.081993819972
4.34
1.971e-05
5.396e-08
d
yr
n .2272609633872988 2.8277e-09 deg/d
Q 2.822557287163162 2.3413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      351  
   data-arc span      9185 days (25.15 yr)  
   first obs. used      1994-11-30  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:51:56  

Additional Information
 Earth MOID = 1.50942 au 
 Jupiter MOID = 2.42726 au 
 T_jup = 3.378 
[ 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 16.2   n/a MPO450008  

212920 (2007 YN21)          Discovered 2007-Dec-16 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2007 YN21 = 2005 JD135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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