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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05757893625436309 4.4806e-08  
a 2.388720520396308 9.0929e-09 au
q 2.25118053382292 1.0827e-07 au
i 6.09481891626925 3.5211e-06 deg
node 244.6020628705792 4.204e-05 deg
peri 281.2123250670901 5.3349e-05 deg
M 16.09638352537993 3.1404e-05 deg
tp 2458940.206256639642
(2020-Mar-31.70625664)
0.00011773 TDB
period 1348.48598602937
3.69
7.6997e-06
2.108e-08
d
yr
n .2669660669296411 1.5244e-09 deg/d
Q 2.526260506969695 9.6165e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1556  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-02-26  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49292  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:47:31  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1922-Feb-25 04:04 < 00:01 Juno 0.0259334913116715 0.0259205036430167 0.0259464791706357 6.82142150287809 6.82142143410634 2423110.669530845 0.344474705668151 656.902796298548 46.7977792813479 -9.76134766317386 15205.5323602106 T 25 CATAB v2.0f-lin.ifort 2020-May-20 08:47:44 2020-May-20 08:47
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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