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187798 (1999 FW15)
Classification: Main-belt Asteroid          SPK-ID: 2187798
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2274176814189219 6.1842e-08  
a 2.681871069504717 1.8861e-08 au
q 2.07196616901347 1.7299e-07 au
i 9.233577707131722 5.5879e-06 deg
node 152.0394833495341 3.1537e-05 deg
peri 33.80387443095216 3.3894e-05 deg
M 354.0048908116183 1.7188e-05 deg
tp 2459227.214673237837
(2021-Jan-12.71467324)
7.6817e-05 TDB
period 1604.188024508226
4.39
1.6922e-05
4.633e-08
d
yr
n .2244125965909516 2.3673e-09 deg/d
Q 3.291775969995964 2.315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1999-03-13  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:52  

Additional Information
 Earth MOID = 1.08121 au 
 Jupiter MOID = 1.68417 au 
 T_jup = 3.320 
[ 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 16.07   n/a E2021B55  

187798 (1999 FW15)          Discovered 1999-Mar-20 by Spacewatch at Kitt Peak
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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