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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917633076503877 3.2767e-08  
a 2.675795003128661 1.1637e-08 au
q 2.16267570273433 8.8141e-08 au
i 11.3622418009938 3.2177e-06 deg
node 106.6251335508118 1.8977e-05 deg
peri 239.5975741873051 2.1357e-05 deg
M 334.5703122366301 8.4324e-06 deg
tp 2458713.431789883763
(2019-Aug-17.93178988)
3.7308e-05 TDB
period 1598.73942363998
4.38
1.0429e-05
2.855e-08
d
yr
n .2251774083235896 1.469e-09 deg/d
Q 3.188914303522993 1.3869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1663  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1998-11-15  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49892  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:47:06  

Additional Information
 Earth MOID = 1.1787 au 
 Jupiter MOID = 2.26629 au 
 T_jup = 3.325 
[ 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 13.8   n/a MPO432297  
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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