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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1769907336591901 2.5386e-08  
a 2.366268841532183 6.3e-09 au
q 1.94746118323452 6.1435e-08 au
i .9439516795931704 2.9198e-06 deg
node 57.41822464086498 0.0001913 deg
peri 199.8347440109046 0.00019152 deg
M 73.09900409609249 9.5846e-06 deg
tp 2459126.537454884695
(2020-Oct-04.03745488)
3.5077e-05 TDB
period 1329.519019352892
3.64
5.3096e-06
1.454e-08
d
yr
n .2707746145483654 1.0814e-09 deg/d
Q 2.785076499829846 7.415e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2350  
   data-arc span      15049 days (41.20 yr)  
   first obs. used      1980-04-08  
   last obs. used      2021-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50592  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:32:25  

Additional Information
 Earth MOID = .93254 au 
 Jupiter MOID = 2.26743 au 
 T_jup = 3.526 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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

Alternate Designations
 1994 AR2 = 1980 GY1 = 1997 CQ14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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