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474560 (2004 BT1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2474560
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .494963911680267 7.3552e-08  
a 3.661822072430706 4.0087e-08 au
q 1.849352295583261 2.6712e-07 au
i 14.59545310188731 7.5792e-06 deg
node 240.6856757354636 4.2044e-05 deg
peri 211.4580313830511 4.266e-05 deg
M 136.3577580507381 1.028e-05 deg
tp 2458031.058436847124
(2017-Oct-04.55843685)
6.3693e-05 TDB
period 2559.436057940864
7.01
4.2028e-05
1.151e-07
d
yr
n .1406559850882267 2.3097e-09 deg/d
Q 5.47429184927815 5.9928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      342  
   data-arc span      6495 days (17.78 yr)  
   first obs. used      2002-09-11  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:47:31  

Additional Information
 Earth MOID = .881163 au 
 Jupiter MOID = .261427 au 
 T_jup = 2.832 
[ 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 15.3   n/a MPO437789  

474560 (2004 BT1)          Discovered 2004-Jan-16 by NEAT at Palomar
Reference: Last Updated: 2016-11-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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