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20998 (1986 QF1)
Classification: Main-belt Asteroid          SPK-ID: 2020998
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1388325339893219 3.6708e-08  
a 2.215912430264154 6.0045e-09 au
q 1.908271692472145 8.3215e-08 au
i 5.262832036094834 4.1275e-06 deg
node 9.25633064059879 3.2397e-05 deg
peri 15.63708947398625 3.471e-05 deg
M 107.0126564797142 1.2361e-05 deg
tp 2458842.354118175893
(2019-Dec-24.85411818)
4.0967e-05 TDB
period 1204.834285009265
3.30
4.8971e-06
1.341e-08
d
yr
n .2987962780269252 1.2145e-09 deg/d
Q 2.523553168056163 6.8381e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1738  
   data-arc span      12620 days (34.55 yr)  
   first obs. used      1986-08-26  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46571  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:35:49  

Additional Information
 Earth MOID = .911007 au 
 Jupiter MOID = 2.93221 au 
 T_jup = 3.635 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.89   n/a E2021B10  

20998 (1986 QF1)          Discovered 1986-Aug-26 by Debehogne, H. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1986 QF1 = 1998 FQ35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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