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JPL Small-Body Database Browser
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249869 (2001 QF172)
Classification: Main-belt Asteroid          SPK-ID: 2249869
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660439794870384 3.4995e-08  
a 2.718144470452483 1.5999e-08 au
q 2.266812945757864 9.7938e-08 au
i 7.854964172548093 5.2242e-06 deg
node 288.97721622 3.9115e-05 deg
peri 123.6135877284274 4.5809e-05 deg
M 279.4433157279639 2.1525e-05 deg
tp 2458966.774186350694
(2020-Apr-27.27418635)
9.8467e-05 TDB
period 1636.843773770144
4.48
1.4452e-05
3.957e-08
d
yr
n .2199354671281863 1.9418e-09 deg/d
Q 3.169475995147101 1.8655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      6624 days (18.14 yr)  
   first obs. used      2001-08-25  
   last obs. used      2019-10-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57364  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:47:43  

Additional Information
 Earth MOID = 1.2891 au 
 Jupiter MOID = 2.20933 au 
 T_jup = 3.326 
[ 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 16.1   n/a MPO224351  

249869 (2001 QF172)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 2001 QF172 = 2003 BC28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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