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240022 Demitra (2001 TR258)
Classification: Main-belt Asteroid          SPK-ID: 2240022
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07522556265839803 5.111e-08  
a 3.173567938138064 4.4083e-08 au
q 2.934834504356977 1.7156e-07 au
i 10.0724299534555 5.9165e-06 deg
node 85.86480266008307 3.6617e-05 deg
peri 13.16075977114762 6.3233e-05 deg
M 26.22406282181666 5.1278e-05 deg
tp 2458850.075837368594
(2020-Jan-01.57583737)
0.00029306 TDB
period 2065.000336342035
5.65
4.3026e-05
1.178e-07
d
yr
n .1743341120407312 3.6324e-09 deg/d
Q 3.412301371919152 4.7399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      8505 days (23.29 yr)  
   first obs. used      1996-12-08  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 01:16:50  

Additional Information
 Earth MOID = 1.95263 au 
 Jupiter MOID = 1.76728 au 
 T_jup = 3.173 
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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 15.1   n/a MPO454750  
diameter diameter 3.940 km 0.952 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.125   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

240022 Demitra           Discovered 2001 Oct. 15 by NEAT at Palomar.
Popular Slovak ice-hockey player Pavol Demitra (1974-2011) spent 16 seasons in the NHL. His most successful season was with St. Louis, being awarded the Lady Byng Memorial Trophy in 2000. A three-time Olympian, he was named to the All-Star Team in 2010. Name suggested by S. Kürti.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120703/MPCPages.arcLast Updated: 2012-07-09

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Alternate Designations
 2001 TR258 = 2009 BK77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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