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187257 (2005 SX250)
Classification: Main-belt Asteroid          SPK-ID: 2187257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09737519097379892 6.1594e-08  
a 2.771344391879574 1.4437e-08 au
q 2.501484202466134 1.6751e-07 au
i 6.012278921351266 4.9894e-06 deg
node 151.2780254740868 4.9146e-05 deg
peri 213.2649511084932 5.3011e-05 deg
M 119.7763712366563 2.0608e-05 deg
tp 2458639.835801046061
(2019-Jun-05.33580105)
9.5328e-05 TDB
period 1685.132965204135
4.61
1.3168e-05
3.605e-08
d
yr
n .2136329936174443 1.6693e-09 deg/d
Q 3.041204581293015 1.5843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      7506 days (20.55 yr)  
   first obs. used      2000-08-26  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53885  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:39  

Additional Information
 Earth MOID = 1.49964 au 
 Jupiter MOID = 2.4041 au 
 T_jup = 3.322 
[ 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 15.9   n/a MPO407412  

187257 (2005 SX250)          Discovered 2005-Sep-23 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2005 SX250 = 2000 QT56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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