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JPL Small-Body Database Browser
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65909 (1998 FH12)
Classification: Apollo [NEO, PHA]          SPK-ID: 2065909
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 79 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5396300132239656 4.4864e-08  
a 1.091064028918274 2.6006e-09 au
q .5022931325649124 4.7961e-08 au
i 3.560178473294486 3.9488e-06 deg
node 108.6133103651404 3.5318e-05 deg
peri 284.4935140360837 3.5749e-05 deg
M 253.2703726193394 2.2039e-05 deg
tp 2459123.911683315442
(2020-Oct-01.41168332)
2.592e-05 TDB
period 416.2687257878463
1.14
1.4883e-06
4.075e-09
d
yr
n .8648259590452059 3.0921e-09 deg/d
Q 1.679834925271635 4.004e-09 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   # delay obs. used      8  
   # Doppler obs. used      2  
   data-arc span      6234 days (17.07 yr)  
   first obs. used      1998-03-25  
   last obs. used      2015-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50823  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:28:54  

Additional Information
 Earth MOID = .0128123 au 
 Jupiter MOID = 3.76202 au 
 T_jup = 5.539 
[ 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 19.2   n/a MPO259755  
rotation period rot_per 3. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Benner, L.A.M. (2011) http://echo.jpl.nasa.gov/~lance/radar.nea.periods.html]

65909 (1998 FH12)          Discovered 1998-Mar-25 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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