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6602 Gilclark (1989 EC)
Classification: Inner Main-belt Asteroid          SPK-ID: 2006602
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07370131458961228 3.2552e-08  
a 1.870613293350974 5.3558e-09 au
q 1.732746634542203 6.1815e-08 au
i 22.66513468071978 7.8063e-06 deg
node 340.9195124211305 8.9268e-06 deg
peri 98.11977037334712 6.2025e-05 deg
M 157.0276277774608 5.853e-05 deg
tp 2458592.887005749954
(2019-Apr-19.38700575)
0.00015203 TDB
period 934.4895545258887
2.56
4.0133e-06
1.099e-08
d
yr
n .3852370508118148 1.6545e-09 deg/d
Q 2.008479952159745 5.7505e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1563  
   data-arc span      11410 days (31.24 yr)  
   first obs. used      1989-03-04  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:32:48  

Additional Information
 Earth MOID = .829778 au 
 Jupiter MOID = 3.10552 au 
 T_jup = 3.885 
[ 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 14.2   n/a MPO467717  
diameter diameter 4.120 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.5686 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2009) Minor Planet Bull. 36, 7-13.]
[Warner, B.D. (2012) Minor Planet Bull. 39, 158-167.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 27-32.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 102-112.]
geometric albedo albedo 0.237   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6602 Gilclark (1989 EC)          Discovered 1989-Mar-04 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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