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9853 (1991 AN2)
Classification: Main-belt Asteroid          SPK-ID: 2009853
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1773803568526162 7.1722e-08  
a 2.559230910585199 1.8719e-08 AU
q 2.105273618397351 1.854e-07 AU
i 17.7057128726557 8.1666e-06 deg
node 147.2268472329987 2.1445e-05 deg
peri 173.0154554470071 3.1745e-05 deg
M 42.82183470515287 2.1768e-05 deg
tp 2456822.620702479546
(2014-Jun-14.12070248)
9.0877e-05 JED
period 1495.418109669595
4.09
1.6407e-05
4.492e-08
d
yr
n .2407353486440927 2.6413e-09 deg/d
Q 3.013188202773048 2.204e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      965  
   data-arc span      28567 days (78.21 yr)  
   first obs. used      1936-07-16  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47417  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:16:18  

Additional Information
 Earth MOID = 1.09458 AU 
 T_jup = 3.348 
[ 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 12.7 mag n/a MPO267747  

9853 (1991 AN2)          Discovered 1991-Jan-07 by McNaught, R. H. at Siding Spring (413)
Reference: 19990106/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 AN2 = 1936 OD = 1977 QK4 = 1981 LL = 1992 EY3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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