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79894 (1999 BP4)
Classification: Main-belt Asteroid          SPK-ID: 2079894
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1745239711262225 5.9113e-08  
a 3.054489655398844 2.0472e-08 au
q 2.521407990974671 1.8767e-07 au
i .8304188101614386 6.3174e-06 deg
node 144.9568384080952 0.00027848 deg
peri 5.885091221776579 0.00027876 deg
M 356.6627932633217 1.2351e-05 deg
tp 2459018.575362911514
(2020-Jun-18.07536291)
6.6971e-05 TDB
period 1949.873400597857
5.34
1.9603e-05
5.367e-08
d
yr
n .1846273711357975 1.8561e-09 deg/d
Q 3.587571319823017 2.4045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      7761 days (21.25 yr)  
   first obs. used      1999-01-19  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53686  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:44:20  

Additional Information
 Earth MOID = 1.53237 au 
 Jupiter MOID = 1.41477 au 
 T_jup = 3.212 
[ 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 15.4   n/a MPO426491  
diameter diameter 4.474 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79894 (1999 BP4)          Discovered 1999-Jan-19 by ODAS at Caussols
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 BP4 = 2002 TR201 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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