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JPL Small-Body Database Browser
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11951 (1994 AJ3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2011951
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345288764726218 4.6194e-08  
a 3.961202263086825 3.7761e-08 au
q 3.428306173152948 1.868e-07 au
i 4.428829537848752 5.8432e-06 deg
node 161.2703241616123 5.6051e-05 deg
peri 312.5025218548272 5.8895e-05 deg
M 100.4328971399285 1.9174e-05 deg
tp 2458197.135855361603
(2018-Mar-19.63585536)		 0.00015078 TDB
period 2879.645019767562
7.88		 4.1177e-05
1.127e-07		 d
yr
n .1250154090274149 1.7876e-09 deg/d
Q 4.494098353020703 4.2841e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      9248 days (25.32 yr)  
   first obs. used      1994-01-12  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55409  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:58:46  

Additional Information
 Earth MOID = 2.44697 au 
 Jupiter MOID = .654874 au 
 T_jup = 3.038 
[ 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 13.0   n/a MPO347619  
diameter diameter 15.014 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.054   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

11951 (1994 AJ3)          Discovered 1994-Jan-12 by Farra d'Isonzo at Farra d'Isonzo
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

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