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JPL Small-Body Database Browser
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20269 (1998 FF28)
Classification: Main-belt Asteroid          SPK-ID: 2020269
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2230109789806345 4.3816e-08  
a 2.239563223982229 6.5445e-09 au
q 1.740116036912926 9.9521e-08 au
i 6.01009969540001 4.6781e-06 deg
node 180.6583548563761 3.1884e-05 deg
peri 182.2470227878494 3.2861e-05 deg
M 27.79023302473614 8.5015e-06 deg
tp 2458905.999717789346
(2020-Feb-26.49971779)
2.8679e-05 TDB
period 1224.174751091655
3.35
5.3659e-06
1.469e-08
d
yr
n .2940756617296434 1.289e-09 deg/d
Q 2.739010411051531 8.004e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1390  
   data-arc span      11965 days (32.76 yr)  
   first obs. used      1986-11-27  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54096  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:29:31  

Additional Information
 Earth MOID = .737636 au 
 Jupiter MOID = 2.71912 au 
 T_jup = 3.595 
[ 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 14.8   n/a MPO435887  

20269 (1998 FF28)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2085-Apr-01 06:15 00:03 Juno 0.0403082257576989 0.0403065139789398 0.0403099391606383 4.07411191458352 4.07411184050039 2482681.760365714 2.55389144174606 445.938932607959 33.2587382819843 -79.8302152237434 178303.377352591 T 23 CATAB v2.0f-lin.ifort 2019-Sep-24 01:29:37 2019-Sep-24 01:29

Alternate Designations
 1998 FF28 = 1986 WR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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