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JPL Small-Body Database Browser
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39937 (1998 FW98)
Classification: Main-belt Asteroid          SPK-ID: 2039937
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05757893743897131 4.4863e-08  
a 2.388720519836939 9.5957e-09 au
q 2.251180530466061 1.0856e-07 au
i 6.094821339682724 3.9478e-06 deg
node 244.6020630143769 4.2166e-05 deg
peri 281.2123227552955 5.4572e-05 deg
M 16.09638612879495 3.4071e-05 deg
tp 2458940.206246908963
(2020-Mar-31.70624691)
0.00012767 TDB
period 1348.485985555706
3.69
8.1255e-06
2.225e-08
d
yr
n .2669660670234146 1.6086e-09 deg/d
Q 2.526260509207817 1.0148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1415  
   data-arc span      8012 days (21.94 yr)  
   first obs. used      1998-02-26  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50516  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:39:26  

Additional Information
 Earth MOID = 1.26662 au 
 Jupiter MOID = 2.472 au 
 T_jup = 3.524 
[ 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 14.7   n/a MPO502432  
diameter diameter 2.426 km 0.592 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.361   0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39937 (1998 FW98)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20020526/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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