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3558 Shishkin (1978 SQ2)
Classification: Main-belt Asteroid          SPK-ID: 2003558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06546105161769741 3.5653e-08  
a 2.441342673925836 1.0691e-08 au
q 2.281529815131489 9.0463e-08 au
i 13.40027282432693 4.8915e-06 deg
node 344.8712485617533 1.5344e-05 deg
peri 303.0658344543831 4.1521e-05 deg
M 35.06417733583235 3.837e-05 deg
tp 2458864.792861235007
(2020-Jan-16.29286123)
0.00014863 TDB
period 1393.290066026239
3.81
9.1519e-06
2.506e-08
d
yr
n .2583812292775081 1.6972e-09 deg/d
Q 2.601155532720183 1.1391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1842  
   data-arc span      23620 days (64.67 yr)  
   first obs. used      1955-08-25  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43968  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:55:44  

Additional Information
 Earth MOID = 1.29286 au 
 Jupiter MOID = 2.57708 au 
 T_jup = 3.461 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO473814  
diameter diameter 8.765 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.875 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Simpson, G.; Chong, E.; Gerhardt, M.; Gorsky, S.; et al. (2013) Minor Planet Bull. 146-151.]
geometric albedo albedo 0.230   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3558 Shishkin (1978 SQ2)          Discovered 1978-Sep-26 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1978 SQ2 = 1955 QZ = 1984 BO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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