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101579 (1999 BR4)
Classification: Main-belt Asteroid          SPK-ID: 2101579
[ 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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081348553306369 3.1736e-08  
a 2.602622693611114 1.0322e-08 au
q 2.321188465157244 8.1946e-08 au
i .4960518633635184 4.1757e-06 deg
node 145.6905383488146 0.00043939 deg
peri 328.406580997022 0.00044007 deg
M 100.4507169823897 2.2479e-05 deg
tp 2458772.576846355131
(2019-Oct-16.07684636)		 9.5908e-05 TDB
period 1533.611107416589
4.20		 9.1232e-06
2.498e-08		 d
yr
n .2347400838837365 1.3964e-09 deg/d
Q 2.884056922064985 1.1438e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1043  
   data-arc span      10630 days (29.10 yr)  
   first obs. used      1991-04-14  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54003  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:29  

Additional Information
 Earth MOID = 1.33756 au 
 Jupiter MOID = 2.19428 au 
 T_jup = 3.405 
[ 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 15.57   n/a E2021B55  

101579 (1999 BR4)          Discovered 1999-Jan-19 by ODAS at Caussols
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 BR4 = 2001 RZ117 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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