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11312 (1994 AR2)
Classification: Main-belt Asteroid          SPK-ID: 2011312
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1765037196039175 2.8698e-08  
a 2.365790609770896 7.2686e-09 au
q 1.948219767342313 6.7616e-08 au
i .9440451463901322 3.1361e-06 deg
node 57.42713801872095 0.00021431 deg
peri 199.9234069796198 0.00021453 deg
M 325.8078688476036 1.0862e-05 deg
tp 2459126.736967218080
(2020-Oct-04.23696722)
4.037e-05 TDB
period 1329.115988586856
3.64
6.1253e-06
1.677e-08
d
yr
n .2708567221305941 1.2483e-09 deg/d
Q 2.783361452199479 8.5515e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1990  
   data-arc span      14545 days (39.82 yr)  
   first obs. used      1980-04-08  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53308  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:00:33  

Additional Information
 Earth MOID = .933197 au 
 Jupiter MOID = 2.27157 au 
 T_jup = 3.527 
[ 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 14.3   n/a MPO365386  
diameter diameter 3.628 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.307   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11312 (1994 AR2)          Discovered 1994-Jan-14 by Kobayashi, T. at Oizumi
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 AR2 = 1980 GY1 = 1997 CQ14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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