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109257 (2001 QR105)
Classification: Main-belt Asteroid          SPK-ID: 2109257
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2245114097645151 4.5086e-08  
a 2.604250050920553 1.3901e-08 au
q 2.01956620060907 1.1416e-07 au
i 3.378784523988273 5.1042e-06 deg
node 202.3379320893777 6.7218e-05 deg
peri 193.4944912558535 6.8312e-05 deg
M 204.0709242090058 1.6623e-05 deg
tp 2459865.385792460836
(2022-Oct-12.88579246)
7.5446e-05 TDB
period 1535.049727394879
4.20
1.229e-05
3.365e-08
d
yr
n .234520089854648 1.8777e-09 deg/d
Q 3.188933901232037 1.7021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      624  
   data-arc span      7712 days (21.11 yr)  
   first obs. used      1999-04-15  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55751  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:14:48  

Additional Information
 Earth MOID = 1.02555 au 
 Jupiter MOID = 2.24292 au 
 T_jup = 3.374 
[ 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 16.04   n/a E2021B55  

109257 (2001 QR105)          Discovered 2001-Aug-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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