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91225 (1999 BL3)
Classification: Main-belt Asteroid          SPK-ID: 2091225
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170025460148972 4.598e-08  
a 2.385662770579423 1.0009e-08 au
q 2.106534152488677 1.0671e-07 au
i 2.058020555737896 4.7611e-06 deg
node 330.0556225438623 0.00011096 deg
peri 233.2437023557933 0.00011226 deg
M 216.3609943440277 1.7762e-05 deg
tp 2459537.509410142032
(2021-Nov-19.00941014)
6.709e-05 TDB
period 1345.897562909602
3.68
8.4696e-06
2.319e-08
d
yr
n .2674794946665489 1.6832e-09 deg/d
Q 2.664791388670169 1.118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      7993 days (21.88 yr)  
   first obs. used      1998-12-22  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54634  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:20:31  

Additional Information
 Earth MOID = 1.10379 au 
 Jupiter MOID = 2.29927 au 
 T_jup = 3.525 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456866.5 (2014-Jul-28.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1164947484612258 4.6049e-08  
q 2.10759257072492 1.0681e-07 au
tp 2456846.066636017188
(2014-Jul-07.56663602)
6.5744e-05 TDB
node 330.1374436283367 0.0001109 deg
peri 233.3042610584585 0.00011221 deg
i 2.058586563473853 4.7625e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      7993 days (21.88 yr)  
   first obs. used      1998-12-22  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54634  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:20:31  

Additional Information
 Jupiter MOID = 2.29927 au 
 T_jup = 3.525 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.120489502113859E-15 -4.903669444846533E-15 -8.600771849813273E-13 3.367177529535337E-15 -2.129151721333701E-13 -1.678289465755813E-17
q -4.903669444846533E-15 1.140771268578416E-14 2.029397033608308E-12 -7.74509662822469E-15 5.011575109909001E-13 2.687098845061488E-17
tp -8.600771849813273E-13 2.029397033608308E-12 4.322262366709982E-9 3.919570638180576E-12 1.140469334609621E-9 4.358142976347873E-13
node 3.367177529535337E-15 -7.74509662822469E-15 3.919570638180576E-12 1.229832868603929E-8 -1.228874769327579E-8 1.254364639318814E-10
peri -2.129151721333701E-13 5.011575109909001E-13 1.140469334609621E-9 -1.228874769327579E-8 1.259161116402928E-8 -1.252476478446487E-10
i -1.678289465755813E-17 2.687098845061488E-17 4.358142976347873E-13 1.254364639318814E-10 -1.252476478446487E-10 2.268185303234151E-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 15.8   n/a MPO436410  
diameter diameter 4.579 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91225 (1999 BL3)          Discovered 1999-Jan-20 by Klet at Klet
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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