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243327 (2008 SQ195)
Classification: Main-belt Asteroid          SPK-ID: 2243327
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2065289844308365 8.8846e-08  
a 2.565872410560904 3.4106e-08 au
q 2.035945387428658 2.4228e-07 au
i 5.662772904501507 1.4822e-05 deg
node 39.33513828755678 0.00010151 deg
peri 38.9483355987777 0.00012433 deg
M 266.4043622268926 7.4067e-05 deg
tp 2459390.805004310291
(2021-Jun-25.30500431)
0.00031493 TDB
period 1501.243058916119
4.11
2.9932e-05
8.195e-08
d
yr
n .239801275257796 4.7812e-09 deg/d
Q 3.09579943369315 4.115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6688 days (18.31 yr)  
   first obs. used      2002-04-06  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65093  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 16:44:48  

Additional Information
 Earth MOID = 1.05482 au 
 Jupiter MOID = 2.19036 au 
 T_jup = 3.395 
[ 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 17.1   n/a MPO440238  
diameter diameter 2.355 km 0.530 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243327 (2008 SQ195)          Discovered 2008-Sep-25 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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