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JPL Small-Body Database Browser
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20280 (1998 FQ49)
Classification: Main-belt Asteroid          SPK-ID: 2020280
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2099986931656192 3.7657e-08  
a 2.439227703716385 7.0074e-09 au
q 1.926993073602569 9.2253e-08 au
i 1.656109769310706 4.2965e-06 deg
node 332.3711068482609 0.00012171 deg
peri 355.7682495432355 0.00012203 deg
M 65.8926584001947 7.8796e-06 deg
tp 2458345.810247584367
(2018-Aug-15.31024758)
3.0429e-05 TDB
period 1391.479917425171
3.81
5.9962e-06
1.642e-08
d
yr
n .2587173522893186 1.1149e-09 deg/d
Q 2.9514623338302 8.479e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1860  
   data-arc span      15829 days (43.34 yr)  
   first obs. used      1976-07-27  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48673  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 00:06:24  

Additional Information
 Earth MOID = .914766 au 
 Jupiter MOID = 2.39473 au 
 T_jup = 3.471 
[ 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 14.1   n/a MPO502320  

20280 (1998 FQ49)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FQ49 = 1976 OS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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