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441726 (2009 BT52)
Classification: Main-belt Asteroid          SPK-ID: 2441726
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04521238141116486 9.0109e-08  
a 2.645574740100903 2.8692e-08 au
q 2.525962005899717 2.5128e-07 au
i 13.16592142886646 9.5492e-06 deg
node 316.4868983787328 2.4586e-05 deg
peri 102.8830342476587 0.00014047 deg
M 342.7822338434477 0.00012891 deg
tp 2459275.671425186529
(2021-Mar-02.17142519)
0.0005623 TDB
period 1571.731943684913
4.30
2.5569e-05
7e-08
d
yr
n .2290466904655402 3.7261e-09 deg/d
Q 2.765187474302088 2.9989e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      9062 days (24.81 yr)  
   first obs. used      1996-01-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55197  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:41:47  

Additional Information
 Earth MOID = 1.57712 au 
 Jupiter MOID = 2.3863 au 
 T_jup = 3.354 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456999.5 (2014-Dec-08.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04624877679307566 8.7514e-08  
q 2.523804336548571 2.4376e-07 au
tp 2457692.968387815378
(2016-Oct-31.46838782)
0.000566 TDB
node 316.6165313813546 2.4611e-05 deg
peri 100.5154712930276 0.00013888 deg
i 13.15556825311906 9.545e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      9062 days (24.81 yr)  
   first obs. used      1996-01-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55197  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:41:47  

Additional Information
 Jupiter MOID = 2.3863 au 
 T_jup = 3.354 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.658632857021432E-15 -2.122150238909381E-14 2.359482870957858E-11 -1.12310245886109E-14 6.202568641098224E-12 -2.481679537349236E-14
q -2.122150238909381E-14 5.941929503614686E-14 -6.926692827490526E-11 3.781091284116993E-14 -1.815674564306643E-11 6.874198145395703E-14
tp 2.359482870957858E-11 -6.926692827490526E-11 3.203591607845712E-7 -2.192170986603835E-10 7.727868551929089E-8 1.730329445087871E-10
node -1.12310245886109E-14 3.781091284116993E-14 -2.192170986603835E-10 6.056990052993957E-10 -6.416971883676339E-10 5.895030229599992E-11
peri 6.202568641098224E-12 -1.815674564306643E-11 7.727868551929089E-8 -6.416971883676339E-10 1.928633775885683E-8 -1.958426985421268E-11
i -2.481679537349236E-14 6.874198145395703E-14 1.730329445087871E-10 5.895030229599992E-11 -1.958426985421268E-11 9.110712983509946E-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 17.5   n/a MPO349182  

441726 (2009 BT52)          Discovered 2009-Jan-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2009 BT52 = 2011 SK6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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