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22410 Grinspoon (1995 SS52)
Classification: Main-belt Asteroid          SPK-ID: 2022410
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02485167862779942 3.4629e-08  
a 2.568147463833696 1.1234e-08 au
q 2.504324688393703 9.3573e-08 au
i 3.527647967795627 3.9596e-06 deg
node 12.14281157637386 6.1558e-05 deg
peri 121.0253669014745 0.00010962 deg
M 292.3034261450193 9.0854e-05 deg
tp 2459483.178352640681
(2021-Sep-25.67835264)
0.0003792 TDB
period 1503.240136918064
4.12
9.864e-06
2.701e-08
d
yr
n .2394826955180098 1.5714e-09 deg/d
Q 2.631970239273689 1.1514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      814  
   data-arc span      9275 days (25.39 yr)  
   first obs. used      1995-09-20  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51869  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:05:40  

Additional Information
 Earth MOID = 1.51948 au 
 Jupiter MOID = 2.34849 au 
 T_jup = 3.428 
[ 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 15.65   n/a E2021B10  

22410 Grinspoon           Discovered 1995 Sept. 29 by Spacewatch at Kitt Peak.
David Grinspoon (b. 1959), an astrobiologist at the Southwest Research Institute, won the 2006 Carl Sagan Medal and wrote the award-winning book Lonely Planets. Name suggested by R. Jedicke and P. Jedicke.
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 2017-03-12Last Updated: 2017-03-14

[ show close-approach data ]
Alternate Designations
 1995 SS52 = 1995 TR3 = 1997 EN37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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