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129455 (1992 BR2)
Classification: Main-belt Asteroid          SPK-ID: 2129455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2664691361377289 4.1093e-08  
a 2.734041068623973 1.5456e-08 au
q 2.00550350690267 1.118e-07 au
i 6.406174576269764 5.0484e-06 deg
node 256.4140748060369 5.7998e-05 deg
peri 198.0044330600533 5.9209e-05 deg
M 109.8045824865243 1.2213e-05 deg
tp 2458496.855678267404
(2019-Jan-13.35567827)
5.4225e-05 TDB
period 1651.223944556103
4.52
1.4002e-05
3.834e-08
d
yr
n .2180200942379009 1.8488e-09 deg/d
Q 3.462578630345277 1.9575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      10315 days (28.24 yr)  
   first obs. used      1992-01-29  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52441  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:44:23  

Additional Information
 Earth MOID = 1.02331 au 
 Jupiter MOID = 1.75805 au 
 T_jup = 3.292 
[ 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 15.7   n/a MPO469350  
diameter diameter 2.810 km 0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.141   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129455 (1992 BR2)          Discovered 1992-Jan-30 by Elst, E. W. at La Silla
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1992 BR2 = 2000 WL61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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