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17060 Mikecombi (1999 GX7)
Classification: Main-belt Asteroid          SPK-ID: 2017060
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1506477538573033 3.5526e-08  
a 2.547487826571758 9.3312e-09 au
q 2.163714507519899 9.0081e-08 au
i 12.23678099354659 4.8251e-06 deg
node 340.7870931204006 1.6417e-05 deg
peri 280.5210667284062 2.28e-05 deg
M 59.42630431111327 1.5047e-05 deg
tp 2458955.343831789557
(2020-Apr-15.84383179)
6.2132e-05 TDB
period 1485.137290276603
4.07
8.1599e-06
2.234e-08
d
yr
n .2424018320440604 1.3318e-09 deg/d
Q 2.931261145623617 1.0737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2229  
   data-arc span      25859 days (70.80 yr)  
   first obs. used      1950-03-21  
   last obs. used      2021-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46666  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:32:06  

Additional Information
 Earth MOID = 1.18692 au 
 Jupiter MOID = 2.29247 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 13.59   n/a E2021B10  
diameter diameter 5.164 km 0.382 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.4 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.240   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17060 Mikecombi           Discovered 1999 Apr. 9 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Michael R. Combi (b. 1962), of the University of Michigan, is a planetary astronomer who specializes in the detailed modeling of cometary comae. His model for the distribution of water molecules and associated byproducts has been invaluable in understanding a wide variety of coma observations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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