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85947 (1999 ET11)
Classification: Main-belt Asteroid          SPK-ID: 2085947
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2063084282422591 7.9006e-08  
a 2.651799604544495 1.7565e-08 au
q 2.104710996117476 2.1555e-07 au
i 28.61919929907473 7.6637e-06 deg
node 76.64200103645454 9.96e-06 deg
peri 90.38995054378785 2.3205e-05 deg
M 8.58861286942688 1.9561e-05 deg
tp 2459162.870364998841
(2020-Nov-09.37036500)		 8.5527e-05 TDB
period 1577.282479297657
4.32		 1.5671e-05
4.29e-08		 d
yr
n .2282406637524454 2.2677e-09 deg/d
Q 3.198888212971514 2.1188e-08 au
   Orbit Determination Parameters
   # obs. used (total)      857  
   data-arc span      9784 days (26.79 yr)  
   first obs. used      1994-04-05  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:42:14  

Additional Information
 Earth MOID = 1.30733 au 
 Jupiter MOID = 2.32058 au 
 T_jup = 3.189 
[ 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 14.34   n/a E2021B10  
diameter diameter 7.591 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.064   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

85947 (1999 ET11)          Discovered 1999-Mar-12 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 ET11 = 2002 TP266 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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