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100997 (1998 QF41)
Classification: Main-belt Asteroid          SPK-ID: 2100997
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .215063203848207 4.4379e-08  
a 2.266102940381333 8.551e-09 au
q 1.778747581773081 1.0297e-07 au
i 6.344440960764585 4.9177e-06 deg
node 164.9470536057561 4.0368e-05 deg
peri 205.1192763090429 4.2195e-05 deg
M 116.2289248986867 1.298e-05 deg
tp 2458598.218928499102
(2019-Apr-24.71892850)
4.3625e-05 TDB
period 1245.99952951952
3.41
7.0525e-06
1.931e-08
d
yr
n .2889246676833196 1.6354e-09 deg/d
Q 2.753458298989585 1.039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      7890 days (21.60 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:01  

Additional Information
 Earth MOID = .78013 au 
 Jupiter MOID = 2.71007 au 
 T_jup = 3.577 
[ 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 16.63   n/a E2021B55  

100997 (1998 QF41)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QF41 = 2000 EH206 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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