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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07520449654446901 4.8349e-08  
a 3.173088803082734 3.9359e-08 au
q 2.934458257156006 1.5613e-07 au
i 10.07204434138462 5.4389e-06 deg
node 85.86032413968459 3.648e-05 deg
peri 13.02062943352465 6.2973e-05 deg
M 61.22677785737744 5.0878e-05 deg
tp 2458849.375874423461
(2019-Dec-31.87587442)
0.0002897 TDB
period 2064.532703354124
5.65
3.8413e-05
1.052e-07
d
yr
n .1743736000961038 3.2444e-09 deg/d
Q 3.411719349009463 4.2319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      8854 days (24.24 yr)  
   first obs. used      1996-12-08  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5814  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:30:12  

Additional Information
 Earth MOID = 1.95201 au 
 Jupiter MOID = 1.76794 au 
 T_jup = 3.173 
[ 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 15.19   n/a E2021B55  
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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