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187622 (2007 BL9)
Classification: Main-belt Asteroid          SPK-ID: 2187622
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1125465515690466 5.305e-08  
a 2.546535613555606 1.8403e-08 au
q 2.259931811802156 1.3784e-07 au
i 3.498107444591071 5.9804e-06 deg
node 31.35446219848036 8.1142e-05 deg
peri 359.6930766157872 8.663e-05 deg
M 225.5984931381718 3.6279e-05 deg
tp 2459754.646628547950
(2022-Jun-24.14662855)
0.00015316 TDB
period 1484.304684785649
4.06
1.609e-05
4.405e-08
d
yr
n .2425378048658441 2.6292e-09 deg/d
Q 2.833139415309055 2.0475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      9751 days (26.70 yr)  
   first obs. used      1993-09-14  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:10  

Additional Information
 Earth MOID = 1.2642 au 
 Jupiter MOID = 2.58482 au 
 T_jup = 3.431 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457375.5 (2015-Dec-19.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113640139737859 5.2832e-08  
q 2.264627289037282 1.3707e-07 au
tp 2456786.715005445744
(2014-May-09.21500545)
0.00013808 TDB
node 31.37167344767922 8.1149e-05 deg
peri .1006765696386266 8.6777e-05 deg
i 3.49765982077297 5.9781e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      9751 days (26.70 yr)  
   first obs. used      1993-09-14  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:10  

Additional Information
 Jupiter MOID = 2.58482 au 
 T_jup = 3.431 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.79121681159859E-15 -7.190434872651506E-15 -1.902912054122575E-12 1.660772245303147E-14 -4.387000809367433E-13 -1.816660605685856E-15
q -7.190434872651506E-15 1.878909485872209E-14 5.813060614699309E-12 -4.332263392889095E-14 1.346702877643026E-12 5.106323739585287E-15
tp -1.902912054122575E-12 5.813060614699309E-12 1.906730951819773E-8 9.935019910818404E-12 4.268542044570705E-9 6.176199932350665E-12
node 1.660772245303147E-14 -4.332263392889095E-14 9.935019910818404E-12 6.585084566268475E-9 -6.570080443335013E-9 -9.408212832727459E-11
peri -4.387000809367433E-13 1.346702877643026E-12 4.268542044570705E-9 -6.570080443335013E-9 7.530170486720656E-9 9.531905704764231E-11
i -1.816660605685856E-15 5.106323739585287E-15 6.176199932350665E-12 -9.408212832727459E-11 9.531905704764231E-11 3.573793260021286E-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 16.53   n/a E2021B55  

187622 (2007 BL9)          Discovered 2007-Jan-17 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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