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215865 (2005 ET144)
Classification: Main-belt Asteroid          SPK-ID: 2215865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07160274466738778 4.4481e-08  
a 2.965358445922034 2.9836e-08 au
q 2.753030642271396 1.4187e-07 au
i 6.218560024292791 6.3732e-06 deg
node 164.5318729594935 4.4967e-05 deg
peri 265.629892474109 6.4162e-05 deg
M 92.80936838095809 4.4131e-05 deg
tp 2458519.656732909892
(2019-Feb-05.15673291)
0.00022966 TDB
period 1865.151968731155
5.11
2.815e-05
7.707e-08
d
yr
n .1930137629723033 2.9131e-09 deg/d
Q 3.177686249572671 3.1973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      7274 days (19.92 yr)  
   first obs. used      2000-03-03  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53901  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:28:00  

Additional Information
 Earth MOID = 1.77617 au 
 Jupiter MOID = 2.03297 au 
 T_jup = 3.252 
[ 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 16.0   n/a MPO470318  
diameter diameter 3.759 km 1.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215865 (2005 ET144)          Discovered 2005-Mar-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2005 ET144 = 2002 RV191 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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