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JPL Small-Body Database Browser
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39949 (1998 FG115)
Classification: Main-belt Asteroid          SPK-ID: 2039949
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07528138126545508 3.66e-08  
a 2.416298222136839 8.3167e-09 au
q 2.234395954425115 8.8268e-08 au
i 5.820659521565092 3.6901e-06 deg
node 251.7998748871589 3.7864e-05 deg
peri 225.0978783360518 4.5931e-05 deg
M 41.24468765460566 2.4356e-05 deg
tp 2458843.322728045258
(2019-Dec-25.82272805)
9.297e-05 TDB
period 1371.905598547762
3.76
7.083e-06
1.939e-08
d
yr
n .2624087257760884 1.3548e-09 deg/d
Q 2.598200489848564 8.9428e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1579  
   data-arc span      7987 days (21.87 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:39:55  

Additional Information
 Earth MOID = 1.25515 au 
 Jupiter MOID = 2.48487 au 
 T_jup = 3.505 
[ 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 14.3   n/a MPO502432  
diameter diameter 3.662 km 0.505 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.174   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39949 (1998 FG115)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FG115 = 1999 RR3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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