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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05784172446870727 4.4897e-08  
a 2.38921598129008 1.1369e-08 au
q 2.251019608804067 1.0897e-07 au
i 6.095059851916501 4.6665e-06 deg
node 244.6059736490645 4.3072e-05 deg
peri 281.1847298928399 5.9555e-05 deg
M 269.3665522343603 4.2982e-05 deg
tp 2458940.099892328251
(2020-Mar-31.59989233)
0.00016164 TDB
period 1348.905555863882
3.69
9.6285e-06
2.636e-08
d
yr
n .2668830285671442 1.905e-09 deg/d
Q 2.527412353776093 1.2027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1310  
   data-arc span      7954 days (21.78 yr)  
   first obs. used      1998-02-26  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51768  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:11:47  

Additional Information
 Earth MOID = 1.26693 au 
 Jupiter MOID = 2.47227 au 
 T_jup = 3.523 
[ 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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