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7204 Ondrejov (1995 GH)
Classification: Main-belt Asteroid          SPK-ID: 2007204
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1228171219922791 3.1172e-08  
a 2.668087970584332 9.4468e-09 au
q 2.340401084814944 8.2526e-08 au
i 4.858634351901376 3.9369e-06 deg
node 172.2645597112677 3.5756e-05 deg
peri 236.3241026487783 3.9346e-05 deg
M 79.0287840397465 1.4969e-05 deg
tp 2458851.052898083158
(2020-Jan-02.55289808)
6.624e-05 TDB
period 1591.837179562235
4.36
8.4542e-06
2.315e-08
d
yr
n .2261537829509687 1.2011e-09 deg/d
Q 2.995774856353721 1.0607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2148  
   data-arc span      14725 days (40.31 yr)  
   first obs. used      1980-11-29  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4684  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:20:11  

Additional Information
 Earth MOID = 1.35341 au 
 Jupiter MOID = 2.37501 au 
 T_jup = 3.366 
[ 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 13.81   n/a MPCxxxxx  
diameter diameter 5.685 km 0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.233 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.181   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7204 Ondrejov (1995 GH)          Discovered 1995-Apr-03 by Pravec, P. at Ondrejov
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1995 GH = 1980 WM3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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