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JPL Small-Body Database Browser
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53910 Janfischer (2000 GF4)
Classification: Main-belt Asteroid          SPK-ID: 2053910
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .120984962831322 4.0159e-08  
a 2.405493342279172 9.8413e-09 au
q 2.114464819672534 9.4906e-08 au
i .02205987899275247 4.1952e-06 deg
node 318.2790856580157 0.01144 deg
peri 113.2781408193302 0.01144 deg
M 260.0358504699815 1.8302e-05 deg
tp 2459378.895915985516
(2021-Jun-13.39591599)
6.9762e-05 TDB
period 1362.713836862877
3.73
8.3627e-06
2.29e-08
d
yr
n .2641787220923515 1.6212e-09 deg/d
Q 2.696521864885811 1.1032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1024  
   data-arc span      7512 days (20.57 yr)  
   first obs. used      1998-10-14  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53029  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:50:02  

Additional Information
 Earth MOID = 1.12903 au 
 Jupiter MOID = 2.53946 au 
 T_jup = 3.513 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO474423  
diameter diameter 3.751 km 1.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.079   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

53910 Jánfischer           Discovered 2000 Apr. 6 by L. Kornoš and D. Kalmančok at the Modra Observatory of the Comenius University.
Ján Fischer (1905-1980) was a theoretical physicist and professor at Comenius University, Bratislava. He studied interaction between matter and electromagnetic radiation and significantly contributed to the quantum theory of photoelectric effect and Compton phenomenon.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

Alternate Designations
 2000 GF4 = 1998 UP44 = 1998 VE23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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