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100255 (1994 SJ5)
Classification: Main-belt Asteroid          SPK-ID: 2100255
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1388035928391754 4.5962e-08  
a 2.575910951089811 1.5616e-08 au
q 2.218365256244768 1.2148e-07 au
i 11.64245335927076 4.6913e-06 deg
node 11.20647186345028 2.8391e-05 deg
peri 220.9795792851213 3.6885e-05 deg
M 246.4939857809617 2.838e-05 deg
tp 2459676.614127084029
(2022-Apr-07.11412708)
0.00012133 TDB
period 1510.061708443829
4.13
1.3732e-05
3.76e-08
d
yr
n .2384008534134625 2.1679e-09 deg/d
Q 2.933456645934854 1.7784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      398  
   data-arc span      11049 days (30.25 yr)  
   first obs. used      1990-10-18  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52866  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:24:49  

Additional Information
 Earth MOID = 1.22198 au 
 Jupiter MOID = 2.09026 au 
 T_jup = 3.385 
[ 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 MPO453457  
diameter diameter 3.215 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100255 (1994 SJ5)          Discovered 1994-Sep-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1994 SJ5 = 2001 FE122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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