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90445 (2004 BY101)
Classification: Main-belt Asteroid          SPK-ID: 2090445
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635924199823718 5.5302e-08  
a 2.327507208175406 1.2968e-08 au
q 1.946744671463577 1.2337e-07 au
i 3.576682456047958 5.2083e-06 deg
node 175.7121948376348 8.4665e-05 deg
peri 3.48836107540851 8.6195e-05 deg
M 185.6608376808817 1.8315e-05 deg
tp 2459628.598032492387
(2022-Feb-18.09803249)
6.8852e-05 TDB
period 1296.985076040273
3.55
1.084e-05
2.968e-08
d
yr
n .277566802155572 2.3198e-09 deg/d
Q 2.708269744887234 1.509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      456  
   data-arc span      10273 days (28.13 yr)  
   first obs. used      1991-09-07  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53777  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:41:40  

Additional Information
 Earth MOID = .950264 au 
 Jupiter MOID = 2.25146 au 
 T_jup = 3.553 
[ show covariance matrix ]

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 16.2   n/a MPO432443  

90445 (2004 BY101)          Discovered 2004-Jan-29 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2004 BY101 = 1995 SU20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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