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JPL Small-Body Database Browser
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268876 (2007 AU21)
Classification: Main-belt Asteroid          SPK-ID: 2268876
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1409561434913816 5.666e-08  
a 2.402697246744019 2.3102e-08 au
q 2.064022308865622 1.3418e-07 au
i 2.690805689915971 9.0055e-06 deg
node 12.40144954109623 0.00011957 deg
peri 103.5753999459437 0.00012704 deg
M 109.1720429169244 4.6601e-05 deg
tp 2458187.969617523801
(2018-Mar-10.46961752)
0.00017178 TDB
period 1360.338542024378
3.72
1.9619e-05
5.371e-08
d
yr
n .2646400060563369 3.8168e-09 deg/d
Q 2.741372184622417 2.6358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      130  
   data-arc span      9053 days (24.79 yr)  
   first obs. used      1994-09-08  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:38:58  

Additional Information
 Earth MOID = 1.08259 au 
 Jupiter MOID = 2.34416 au 
 T_jup = 3.510 
[ 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 17.5   n/a MPO476136  

268876 (2007 AU21)          Discovered 2007-Jan-15 by LONEOS at Anderson Mesa
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 2007 AU21 = 2000 GR181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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