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213815 (2003 QB20)
Classification: Main-belt Asteroid          SPK-ID: 2213815
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978984980538276 4.2792e-08  
a 2.265209260175757 7.0386e-09 au
q 1.816927749809353 9.7852e-08 au
i 7.29122694432217 4.4456e-06 deg
node 132.5786333767252 2.6072e-05 deg
peri 236.6178893750618 2.7844e-05 deg
M 9.718636529326924 8.7522e-06 deg
tp 2459166.882628094335
(2020-Nov-13.38262809)
3.0282e-05 TDB
period 1245.262527260873
3.41
5.804e-06
1.589e-08
d
yr
n .2890956662703644 1.3474e-09 deg/d
Q 2.713490770542161 8.4315e-09 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      7941 days (21.74 yr)  
   first obs. used      1999-05-17  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50719  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:44:13  

Additional Information
 Earth MOID = .825679 au 
 Jupiter MOID = 2.76503 au 
 T_jup = 3.580 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457809.5 (2017-Feb-25.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1987977627317859 4.2701e-08  
q 1.814782773926414 9.7726e-08 au
tp 2457922.205282965109
(2017-Jun-17.70528297)
3.0952e-05 TDB
node 132.6137774523087 2.6096e-05 deg
peri 236.7898515320173 2.7853e-05 deg
i 7.288549227158412 4.444e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      7941 days (21.74 yr)  
   first obs. used      1999-05-17  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50719  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:44:13  

Additional Information
 Jupiter MOID = 2.76503 au 
 T_jup = 3.580 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.82337993862613E-15 -4.166137154536745E-15 -5.046758506163119E-13 1.361562986517407E-14 -1.206607816740675E-13 -4.169071174648467E-15
q -4.166137154536745E-15 9.550406197677681E-15 1.100855873726067E-12 -3.170127571176219E-14 2.592417115597333E-13 9.665200296190863E-15
tp -5.046758506163119E-13 1.100855873726067E-12 9.580522392921868E-10 -2.896287212334607E-12 3.079894187811762E-10 2.898534346756634E-12
node 1.361562986517407E-14 -3.170127571176219E-14 -2.896287212334607E-12 6.810269344359393E-10 -6.755972857869405E-10 4.228384666455076E-11
peri -1.206607816740675E-13 2.592417115597333E-13 3.079894187811762E-10 -6.755972857869405E-10 7.757654871238569E-10 -4.112052306716362E-11
i -4.169071174648467E-15 9.665200296190863E-15 2.898534346756634E-12 4.228384666455076E-11 -4.112052306716362E-11 1.974926562049757E-11

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 16.25   n/a MPCxxxxx  
diameter diameter 1.508 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.309   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213815 (2003 QB20)          Discovered 2003-Aug-22 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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