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295616 (2008 SN204)
Classification: Main-belt Asteroid          SPK-ID: 2295616
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05915426440081131 6.0965e-08  
a 3.07708118118377 3.5467e-08 au
q 2.895058707409265 1.9194e-07 au
i 9.046566081023267 7.8312e-06 deg
node 62.72883678501648 3.9715e-05 deg
peri 288.1210007207312 7.6608e-05 deg
M 97.74582551982081 6.3857e-05 deg
tp 2458465.193426855363
(2018-Dec-12.69342686)
0.00035032 TDB
period 1971.545744355004
5.40
3.4087e-05
9.333e-08
d
yr
n .1825978428503442 3.157e-09 deg/d
Q 3.259103654958276 3.7565e-08 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      9921 days (27.16 yr)  
   first obs. used      1992-11-23  
   last obs. used      2020-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:41:17  

Additional Information
 Earth MOID = 1.90678 au 
 Jupiter MOID = 2.02454 au 
 T_jup = 3.207 
[ 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 15.9   n/a MPO455185  
diameter diameter 4.600 km 1.547 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295616 (2008 SN204)          Discovered 2008-Sep-26 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 SN204 = 2003 YD178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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