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101721 Emanuelfritsch (1999 EF3)
Classification: Main-belt Asteroid          SPK-ID: 2101721
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .117128288415432 4.6284e-08  
a 3.118434983511501 2.1736e-08 au
q 2.753178031357993 1.4301e-07 au
i 14.21480751059723 5.1747e-06 deg
node 178.0431227580304 1.7921e-05 deg
peri 40.70313250993389 2.6882e-05 deg
M 323.3594129903417 1.9833e-05 deg
tp 2459405.221469200934
(2021-Jul-09.72146920)
0.00011136 TDB
period 2011.423258391281
5.51
2.103e-05
5.758e-08
d
yr
n .1789777454835264 1.8713e-09 deg/d
Q 3.483691935665008 2.4282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1999-03-13  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56992  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:14  

Additional Information
 Earth MOID = 1.76387 au 
 Jupiter MOID = 1.52147 au 
 T_jup = 3.159 
[ 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 14.75   n/a E2021B55  
diameter diameter 5.240 km 0.361 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.112   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101721 Emanuelfritsch           Discovered 1999 Mar. 13 by J. Ticha and M. Tichy at Klet.
Emanuel Fritsch (1874-1956) was a railway engineer and regional representative of the Czech Tourist Club. He served as a volunteer in building and marking hiking trails in South Bohemia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20130127/MPCPages.arcLast Updated: 2013-01-31

[ show close-approach data ]
Alternate Designations
 1999 EF3 = 2001 SX319 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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