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JPL Small-Body Database Browser
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99193 Obsfabra (2001 GN4)
Classification: Main-belt Asteroid          SPK-ID: 2099193
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3271469159800298 3.9762e-08  
a 3.069543994588264 2.4646e-08 au
q 2.065352143293692 1.2156e-07 au
i 15.29913094530677 4.632e-06 deg
node 114.0493777407205 2.1578e-05 deg
peri 159.976333633329 2.3029e-05 deg
M 86.9162759031035 9.9585e-06 deg
tp 2458126.249465027126
(2018-Jan-07.74946503)
5.0841e-05 TDB
period 1964.306349026838
5.38
2.3657e-05
6.477e-08
d
yr
n .1832708020204446 2.2072e-09 deg/d
Q 4.073735845882836 3.2708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      711  
   data-arc span      6457 days (17.68 yr)  
   first obs. used      2001-03-24  
   last obs. used      2018-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57084  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:17:54  

Additional Information
 Earth MOID = 1.05489 au 
 Jupiter MOID = 1.1528 au 
 T_jup = 3.095 
[ 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 14.4   n/a MPO395879  
diameter diameter 8.819 km 0.426 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

99193 Obsfabra           Discovered 2001 Apr. 14 by J. Manteca at Begues.
Inaugurated on 1904 Apr. 7, the Fabra Observatory in Barcelona has been known for its work in astronomy, meteorology and seismology.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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