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39912 (1998 FN40)
Classification: Main-belt Asteroid          SPK-ID: 2039912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1195723063808002 4.3514e-08  
a 2.315045467895574 8.5387e-09 au
q 2.038230141922881 1.0159e-07 au
i 2.983412337686603 3.9215e-06 deg
node 305.7549958434032 8.8176e-05 deg
peri 62.83630442307272 8.9489e-05 deg
M 162.2881008852326 1.6215e-05 deg
tp 2458020.508148835972
(2017-Sep-24.00814884)
5.7291e-05 TDB
period 1286.582720976617
3.52
7.118e-06
1.949e-08
d
yr
n .2798110017572223 1.5481e-09 deg/d
Q 2.591860793868267 9.5597e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1662  
   data-arc span      9230 days (25.27 yr)  
   first obs. used      1994-01-18  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51361  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:08:59  

Additional Information
 Earth MOID = 1.03824 au 
 Jupiter MOID = 2.86824 au 
 T_jup = 3.570 
[ 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 14.9   n/a MPO365720  
diameter diameter 2.997 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39912 (1998 FN40)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 FN40 = 1999 NN27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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