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JPL Small-Body Database Browser
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268880 (2007 AD31)
Classification: Main-belt Asteroid          SPK-ID: 2268880
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144617894350458 5.7379e-08  
a 2.415278929779738 3.3294e-08 au
q 2.138821781492387 1.2334e-07 au
i 1.884643050279934 7.78e-06 deg
node 182.3619315335152 0.0002073 deg
peri 309.6927900484137 0.00021574 deg
M 93.98562248154111 6.7087e-05 deg
tp 2458242.561604207688
(2018-May-04.06160421)
0.00024966 TDB
period 1371.037602166654
3.75
2.8349e-05
7.762e-08
d
yr
n .2625748553001691 5.4292e-09 deg/d
Q 2.691736078067089 3.7105e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      5039 days (13.80 yr)  
   first obs. used      2005-09-13  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62675  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:38:59  

Additional Information
 Earth MOID = 1.15422 au 
 Jupiter MOID = 2.342 au 
 T_jup = 3.507 
[ 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 17.4   n/a MPO476136  

268880 (2007 AD31)          Discovered 2007-Jan-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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