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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 | Close-Approach Data ]

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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09839557173328314 6.9968e-08  
a 2.73448883105933 2.3899e-08 au
q 2.46542723912897 1.8165e-07 au
i 11.88180263943071 5.8047e-06 deg
node 137.3356520265982 2.8032e-05 deg
peri 241.4828986092068 3.6775e-05 deg
M 188.7427759108523 2.5315e-05 deg
tp 2459986.204168256670
0.0001192 TDB
period 1651.629600309077
n .217966546453655 2.8574e-09 deg/d
Q 3.00355042298969 2.625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      484  
   data-arc span      8084 days (22.13 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59242  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:06:32  

Additional Information
 Earth MOID = 1.48818 au 
 Jupiter MOID = 2.46633 au 
 T_jup = 3.315 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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] (  
geometric albedo albedo 0.204   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1904-Dec-16 13:01 00:03 Amphi 0.0346009751112456 0.034569221696989 0.0346327307555106 5.68009731330997 5.68009728405976 2416831.042210904 3.38403987429914 1642.58335361792 47.7979094527109 -15.4764805189719 29047.1491281266 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 15:06:33 2021-Apr-13 15:06

Alternate Designations
 2002 CJ261 = 2000 WG162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2021-May-06 10:52 UT
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