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JPL Small-Body Database Browser
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7691 Brady (3186 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2007691
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1942358380144246 2.856e-08  
a 2.370501926502641 7.59e-09 au
q 1.910065498293592 6.8092e-08 au
i 3.285762585227775 3.4256e-06 deg
node 54.8021621603673 7.0974e-05 deg
peri 2.463852848202397 7.1791e-05 deg
M 109.8728889402763 1.1515e-05 deg
tp 2458193.638178772590
(2018-Mar-16.13817877)
4.194e-05 TDB
period 1333.088235456195
3.65
6.4025e-06
1.753e-08
d
yr
n .2700496414453801 1.297e-09 deg/d
Q 2.83093835471169 9.0643e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2020  
   data-arc span      22656 days (62.03 yr)  
   first obs. used      1957-04-28  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45896  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:30:10  

Additional Information
 Earth MOID = .92173 au 
 Jupiter MOID = 2.51506 au 
 T_jup = 3.517 
[ 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 14.3   n/a MPO435772  
diameter diameter 3.855 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.272   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7691 Brady           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named in honor of Charles E. "Chuck" Brady, Jr. (b. 1951), captain in the U.S. Navy, NASA astronaut, surgeon, experienced amateur radio operator and close friend to the name proposer. As a mission specialist, Chuck flew on the Life and Microgravity Spacelab mission aboard "Columbia" and has logged over 405 hours in space. In 1997, Chuck organized a radio expedition to Palmyra Island and the Kingman Reef in the Pacific. His ham call sign, N4BQW, could have been heard around the globe. Name proposed and citation prepared by L. D. Schmadel, DK8UH, who contacted him on Palmyra.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981005/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 3186 T-3 = 1981 YL1 = 1993 BE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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