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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1505921429059503 3.5838e-08  
a 2.548077823527119 1.0674e-08 au
q 2.16435732379104 9.1224e-08 au
i 12.23243255611506 5.3644e-06 deg
node 340.80157734237 1.7025e-05 deg
peri 280.6698828897396 2.4753e-05 deg
M 10.82822114979056 1.9105e-05 deg
tp 2458955.813938873896
(2020-Apr-16.31393887)
7.8769e-05 TDB
period 1485.653255771236
4.07
9.3354e-06
2.556e-08
d
yr
n .2423176461947145 1.5227e-09 deg/d
Q 2.931798323263198 1.2282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1989  
   data-arc span      25656 days (70.24 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:05:51  

Additional Information
 Earth MOID = 1.18909 au 
 Jupiter MOID = 2.29354 au 
 T_jup = 3.394 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456646.5 (2013-Dec-20.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .151112565478543 3.5916e-08  
q 2.16224066992819 9.1223e-08 au
tp 2455982.712610008277
(2012-Feb-25.21261001)
7.4864e-05 TDB
node 340.9042611648746 1.7063e-05 deg
peri 280.0592865340077 2.4679e-05 deg
i 12.22084708255997 5.3595e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1989  
   data-arc span      25656 days (70.24 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:05:51  

Additional Information
 Jupiter MOID = 2.29354 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.289926413735296E-15 -3.259948549211714E-15 9.943879977890159E-13 -2.459106603776324E-15 2.728437092620821E-13 5.386063063767149E-16
q -3.259948549211714E-15 8.32164584679341E-15 -2.48814303067015E-12 7.524203752682889E-15 -6.772085005189528E-13 -1.739507102399061E-15
tp 9.943879977890159E-13 -2.48814303067015E-12 5.604585355690951E-9 8.54508363331079E-12 1.342173596349131E-9 -5.608237852762133E-12
node -2.459106603776324E-15 7.524203752682889E-15 8.54508363331079E-12 2.911616815402169E-10 -2.820247884795253E-10 -2.285389568078054E-11
peri 2.728437092620821E-13 -6.772085005189528E-13 1.342173596349131E-9 -2.820247884795253E-10 6.090359068307953E-10 2.093036853176267E-11
i 5.386063063767149E-16 -1.739507102399061E-15 -5.608237852762133E-12 -2.285389568078054E-11 2.093036853176267E-11 2.872378919170178E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO473994  
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. 2019-August); 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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