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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1172895423572708 4.9453e-08  
a 3.119023869250309 2.6151e-08 au
q 2.753194987024536 1.4897e-07 au
i 14.21312127154321 5.1805e-06 deg
node 178.0468977919844 1.933e-05 deg
peri 40.64793561430508 2.8476e-05 deg
M 287.6308908314725 2.2112e-05 deg
tp 2459404.961511296572
(2021-Jul-09.46151130)
0.00012582 TDB
period 2011.993041501861
5.51
2.5304e-05
6.928e-08
d
yr
n .1789270601707829 2.2503e-09 deg/d
Q 3.484852751476082 2.9219e-08 au
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      7737 days (21.18 yr)  
   first obs. used      1999-03-13  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:51  

Additional Information
 Earth MOID = 1.76476 au 
 Jupiter MOID = 1.52132 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 14.7   n/a MPO337994  
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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