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173569 (2001 BL20)
Classification: Main-belt Asteroid          SPK-ID: 2173569
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0811920684370057 7.2574e-08  
a 2.284283565767892 1.5541e-08 au
q 2.098817858166538 1.6338e-07 au
i 8.565285769823264 5.4861e-06 deg
node 102.3726741090806 3.9262e-05 deg
peri 339.6871760673128 5.8674e-05 deg
M 143.1011984760989 4.1459e-05 deg
tp 2458099.238649350639
(2017-Dec-11.73864935)
0.0001444 TDB
period 1261.024283202702
3.45
1.2869e-05
3.523e-08
d
yr
n .2854822106087329 2.9134e-09 deg/d
Q 2.469749273369247 1.6803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      6698 days (18.34 yr)  
   first obs. used      2001-01-04  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68233  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:42:13  

Additional Information
 Earth MOID = 1.11705 au 
 Jupiter MOID = 2.68671 au 
 T_jup = 3.584 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456666.5 (2014-Jan-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08130948551451304 7.2495e-08  
q 2.097827895222191 1.6309e-07 au
tp 2456839.993158712693
(2014-Jul-01.49315871)
0.00014295 TDB
node 102.4036757854993 3.925e-05 deg
peri 340.0298136860582 5.8653e-05 deg
i 8.56717963177327 5.4875e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      6698 days (18.34 yr)  
   first obs. used      2001-01-04  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68233  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:42:13  

Additional Information
 Jupiter MOID = 2.68671 au 
 T_jup = 3.584 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.255543632910307E-15 -1.177935589294861E-14 -3.508037396740262E-12 2.102191742035199E-15 -1.376097905186539E-12 4.746062269702E-15
q -1.177935589294861E-14 2.659881036680976E-14 8.095012450486308E-12 -4.338984229256405E-15 3.143237433752072E-12 -1.039058442907002E-14
tp -3.508037396740262E-12 8.095012450486308E-12 2.043601236277738E-8 3.641527423294392E-11 6.226973826435663E-9 -2.547121517904771E-11
node 2.102191742035199E-15 -4.338984229256405E-15 3.641527423294392E-11 1.540589819604054E-9 -1.512201558261243E-9 6.759474864516622E-12
peri -1.376097905186539E-12 3.143237433752072E-12 6.226973826435663E-9 -1.512201558261243E-9 3.440179023547294E-9 -1.450769456331194E-11
i 4.746062269702E-15 -1.039058442907002E-14 -2.547121517904771E-11 6.759474864516622E-12 -1.450769456331194E-11 3.011270406920501E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO436861  

173569 (2001 BL20)          Discovered 2001-Jan-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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