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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1765037206430634 2.5455e-08  
a 2.365790610038647 6.1757e-09 au
q 1.948219765104403 6.1455e-08 au
i .9440465516044835 2.9233e-06 deg
node 57.42726172533634 0.00019161 deg
peri 199.9232834680168 0.00019182 deg
M 325.8078685121816 9.4881e-06 deg
tp 2459126.736968477885
(2020-Oct-04.23696848)
3.5164e-05 TDB
period 1329.115988812492
3.64
5.2043e-06
1.425e-08
d
yr
n .2708567220846124 1.0606e-09 deg/d
Q 2.78336145497289 7.2657e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2334  
   data-arc span      14737 days (40.35 yr)  
   first obs. used      1980-04-08  
   last obs. used      2020-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50199  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:00:23  

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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