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7887 Bratfest (1993 SU2)
Classification: Main-belt Asteroid          SPK-ID: 2007887
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09996807217944886 2.619e-08  
a 2.578532889396866 9.0857e-09 au
q 2.320761927392557 6.5575e-08 au
i 13.74091675770967 5.7414e-07 deg
node 295.0811341600535 3.2127e-06 deg
peri 102.4267151711606 6.5095e-06 deg
M 184.0012747026293 6.191e-06 deg
tp 2459939.874488166787
(2022-Dec-26.37448817)
2.8692e-05 TDB
period 1512.367861132571
4.14
7.9934e-06
2.188e-08
d
yr
n .2380373249471236 1.2581e-09 deg/d
Q 2.836303851401175 9.9939e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2363  
   data-arc span      17220 days (47.15 yr)  
   first obs. used      1973-12-25  
   last obs. used      2021-02-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 20:12:59  

Additional Information
 Earth MOID = 1.37397 au 
 Jupiter MOID = 2.5274 au 
 T_jup = 3.379 
[ 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 12.27   n/a E2021B10  
diameter diameter 10.641 km 0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.225   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[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

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Alternate Designations
 1993 SU2 = 1973 YQ3 = 1985 VL5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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