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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .206173072994497 4.0939e-08  
a 2.651405146447042 1.271e-08 au
q 2.104756799650631 1.0426e-07 au
i 28.61984573137859 6.7062e-06 deg
node 76.640306181059 8.429e-06 deg
peri 90.38594036770826 2.2533e-05 deg
M 53.34164354009876 1.8276e-05 deg
tp 2459162.844256259904
(2020-Nov-09.34425626)
7.9445e-05 TDB
period 1576.930558639454
4.32
1.1339e-05
3.104e-08
d
yr
n .2282915997966335 1.6415e-09 deg/d
Q 3.198053493243453 1.533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      9985 days (27.34 yr)  
   first obs. used      1994-04-05  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46844  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:54:26  

Additional Information
 Earth MOID = 1.30853 au 
 Jupiter MOID = 2.3199 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 14.43   n/a MPO637178  
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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