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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1767418222183963 2.5447e-08  
a 2.366418079661453 6.1312e-09 au
q 1.948173036131529 6.1457e-08 au
i .9439842924352433 2.9229e-06 deg
node 57.42622938312886 0.00019163 deg
peri 199.9260554229793 0.00019184 deg
M 19.9699749715674 9.5355e-06 deg
tp 2459126.741740706833
(2020-Oct-04.24174071)
3.5141e-05 TDB
period 1329.644798420902
3.64
5.1675e-06
1.415e-08
d
yr
n .2707490003552372 1.0522e-09 deg/d
Q 2.784663123191376 7.2148e-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 = .931489 au 
 Jupiter MOID = 2.26929 au 
 T_jup = 3.526 
[ 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 14.32   n/a E2021B10  
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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