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JPL Small-Body Database Browser
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39903 (1998 FL30)
Classification: Main-belt Asteroid          SPK-ID: 2039903
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1418663083660615 3.1184e-08  
a 2.412042174866796 9.0629e-09 au
q 2.069854655895198 7.5882e-08 au
i 2.220136152964538 4.3095e-06 deg
node 216.8081414266467 9.1676e-05 deg
peri 36.41074020528601 9.313e-05 deg
M 269.3215916061669 1.7053e-05 deg
tp 2459345.149109447808
(2021-May-10.64910945)
6.5381e-05 TDB
period 1368.282500750741
3.75
7.7117e-06
2.111e-08
d
yr
n .2631035621682491 1.4829e-09 deg/d
Q 2.754229693838394 1.0349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1443  
   data-arc span      9466 days (25.92 yr)  
   first obs. used      1994-03-06  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49948  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:38:30  

Additional Information
 Earth MOID = 1.05586 au 
 Jupiter MOID = 2.28145 au 
 T_jup = 3.504 
[ 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 14.9   n/a MPO459140  
diameter diameter 6.158 km 0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39903 (1998 FL30)          Discovered 1998-Mar-20 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
1992-Feb-12 19:52 < 00:01 Juno 0.0388106609460966 0.0388084398289651 0.0388128820837403 8.69308123125204 8.69308119519241 2448665.327467063 0.183839441075536 120.406308294509 37.4665811098137 24.4021308165437 77615.7348837152 T 27 CATAB v2.0f-lin.ifort 2020-Feb-23 05:38:42 2020-Feb-23 05:38
2036-Oct-12 05:29 < 00:01 Hebe 0.0275603998823441 0.027556751567326 0.0275640485611408 7.86681583325637 7.86681580458337 2464978.728763939 0.305605835631869 242.732371217629 34.1058113258297 -41.970477014702 81807.9081170132 T 27 CATAB v2.0f-lin.ifort 2020-Feb-23 05:38:42 2020-Feb-23 05:38

Alternate Designations
 1998 FL30 = 1999 RP17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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