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90446 Truesdell (2004 BL107)
Classification: Main-belt Asteroid          SPK-ID: 2090446
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2158448587837608 3.8161e-08  
a 2.354152666034348 9.9356e-09 au
q 1.84602091627875 9.0874e-08 au
i 5.609148286549395 4.2666e-06 deg
node 34.20910647980768 3.4156e-05 deg
peri 222.149310802279 3.6237e-05 deg
M 91.15083686437053 8.7007e-06 deg
tp 2458666.452272733934
(2019-Jul-01.95227273)
3.2713e-05 TDB
period 1319.320655220339
3.61
8.3522e-06
2.287e-08
d
yr
n .2728677054933825 1.7274e-09 deg/d
Q 2.862284415789946 1.208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      7636 days (20.91 yr)  
   first obs. used      1998-09-25  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:11:44  

Additional Information
 Earth MOID = .836008 au 
 Jupiter MOID = 2.20693 au 
 T_jup = 3.518 
[ 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 15.5   n/a MPO493505  

90446 Truesdell           Discovered 2004 Jan. 28 by the Catalina Sky Survey.
Robert Truesdell (b. 1967) is a Tucson businessman and gifted amateur paleontologist specializing in the fossils of the American southwest.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 2004 BL107 = 1998 TV36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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