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7887 Bratfest (1993 SU2)
Classification: Main-belt Asteroid          SPK-ID: 2007887
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458000.5 (2017-Sep-04.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0994275043298349 4.5385e-08  
a 2.57887843221681 1.4031e-08 au
q 2.322466985731455 1.1377e-07 au
i 13.74006530797883 4.8314e-06 deg
node 295.0903711999756 2.005e-05 deg
peri 102.7903068675189 3.1747e-05 deg
M 258.1060725722686 2.5973e-05 deg
tp 2458428.644661626604
(2018-Nov-06.14466163)
0.00011033 JED
period 1512.671874336143
4.14
1.2345e-05
3.38e-08
d
yr
n .2379894847704436 1.9422e-09 deg/d
Q 2.835289878702165 1.5426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1350  
   data-arc span      15897 days (43.52 yr)  
   first obs. used      1973-12-25  
   last obs. used      2017-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   fit RMS      .5209  
   data source      ORB  
   producer      Otto Matic  
   solution date      2017-Jul-11 13:06:54  

Additional Information
 Earth MOID = 1.37641 au 
 Jupiter MOID = 2.52918 au 
 T_jup = 3.379 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.2 mag n/a MPO332893  
diameter diameter 10.641 km 0.190 EAR_A_COMPIL_5_NEOWISEDIAM_V1_0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.225   0.025 EAR_A_COMPIL_5_NEOWISEDIAM_V1_0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7887 Bratfest           Discovered 1993 Sept. 18 by C. W. Hergenrother at Catalina Station.
Bratfest, which celebrates its 25th anniversary in 2003, is an annual Oktoberfest-style party organized by graduate students of the University of Arizona's Lunar and Planetary Laboratory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1993 SU2 = 1973 YQ3 = 1985 VL5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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