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95449 Frederickgregory (2002 CJ261)
Classification: Main-belt Asteroid          SPK-ID: 2095449
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09855978110890269 5.0239e-08  
a 2.734166487815039 1.8085e-08 au
q 2.464687637260691 1.3713e-07 au
i 11.88185167521019 4.0916e-06 deg
node 137.3365321940428 2.6298e-05 deg
peri 241.46672559 3.427e-05 deg
M 231.4952110338658 2.5266e-05 deg
tp 2459985.957737389138
(2023-Feb-10.45773739)
0.00011872 TDB
period 1651.337566228862
4.52
1.6384e-05
4.486e-08
d
yr
n .2180050931816002 2.1629e-09 deg/d
Q 3.003645338369387 1.9867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      8476 days (23.21 yr)  
   first obs. used      1998-04-23  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5681  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:48:59  

Additional Information
 Earth MOID = 1.48814 au 
 Jupiter MOID = 2.4669 au 
 T_jup = 3.315 
[ 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 15.58   n/a E2021B10  
diameter diameter 2.813 km 0.336 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.204   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

95449 Frederickgregory           Discovered 2002 Feb. 7 by M. W. Buie at Kitt Peak.
Frederick Drew Gregory (b. 1941) is a retired American astronaut who was the pilot on one space shuttle mission and commander on two other missions. In 1989, he was the first African American to command a space flight. He also served as Deputy Administrator at NASA.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2021-01-27Last Updated: 2021-02-23

Alternate Designations
 2002 CJ261 = 2000 WG162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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