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31239 Michaeljames (1998 DV1)
Classification: Main-belt Asteroid          SPK-ID: 2031239
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1974193861723987 1.24e-07  
a 2.595577551073172 2.9089e-08 AU
q 2.083160224177448 3.3215e-07 AU
i 12.01745763020474 8.439e-06 deg
node 310.7593898411989 4.7046e-05 deg
peri 70.02582370382591 5.9183e-05 deg
M 97.08329926019213 2.5152e-05 deg
tp 2456588.600308214471
(2013-Oct-23.10030821)
0.00010908 JED
period 1527.388234359199
4.18
2.5676e-05
7.03e-08
d
yr
n .2356964600758723 3.9622e-09 deg/d
Q 3.107994877968895 3.4832e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      6654 days (18.22 yr)  
   first obs. used      1996-08-09  
   last obs. used      2014-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51923  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:58:32  

Additional Information
 Earth MOID = 1.11932 AU 
 T_jup = 3.359 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO279841  

31239 Michaeljames           Discovered 1998 Feb. 21 by I. P. Griffin at Cocoa.
Michael James (b. 1970) is a high-school teacher of English at Kenwood High School, Baltimore County, Maryland. During his teaching career he has inspired many students to take a deep interest in literature.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

[ show close-approach data ]
Alternate Designations
 1998 DV1 = 2000 ON23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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