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74434 (1999 BZ20)
Classification: Main-belt Asteroid          SPK-ID: 2074434
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1918486524181892 3.2677e-08  
a 2.676160486814936 1.1483e-08 au
q 2.162742703764685 8.7878e-08 au
i 11.36248019856823 3.1181e-06 deg
node 106.6245174410592 1.8906e-05 deg
peri 239.6672445627381 2.1258e-05 deg
M 64.57968944694591 8.1927e-06 deg
tp 2458713.646528885153
(2019-Aug-18.14652889)
3.6732e-05 TDB
period 1599.066989725649
4.38
1.0292e-05
2.818e-08
d
yr
n .225131281123979 1.449e-09 deg/d
Q 3.189578269865187 1.3686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1781  
   data-arc span      7749 days (21.22 yr)  
   first obs. used      1998-11-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49063  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:15:55  

Additional Information
 Earth MOID = 1.1797 au 
 Jupiter MOID = 2.26931 au 
 T_jup = 3.324 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO502607  
diameter diameter 4.345 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

74434 (1999 BZ20)          Discovered 1999-Jan-16 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 BZ20 = 2000 FX17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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