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JPL Small-Body Database Browser
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39966 (1998 FB141)
Classification: Main-belt Asteroid          SPK-ID: 2039966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .239255153480551 4.2474e-08  
a 2.548474208270474 1.3004e-08 au
q 1.938738620429496 1.0735e-07 au
i 3.963292973974103 4.0876e-06 deg
node 215.76144324001 8.8933e-05 deg
peri 37.49507460201936 9.0172e-05 deg
M 111.7900569406341 1.572e-05 deg
tp 2458539.055506865601
(2019-Feb-24.55550687)
6.4961e-05 TDB
period 1485.999936618705
4.07
1.1374e-05
3.114e-08
d
yr
n .2422611139669065 1.8542e-09 deg/d
Q 3.158209796111452 1.6115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      13653 days (37.38 yr)  
   first obs. used      1982-07-20  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59878  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:40:21  

Additional Information
 Earth MOID = .926168 au 
 Jupiter MOID = 1.89566 au 
 T_jup = 3.398 
[ 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 16.0   n/a MPO493127  

39966 (1998 FB141)          Discovered 1998-Mar-29 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

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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
1988-Jan-26 17:45 < 00:01 Jupiter 1.99038328391201 1.99038277672609 1.99038379109782 2.11545105636527 1.9036854231991 2447187.239526852 0.58391428208213 63.462122302245 20.8912410103939 -77.414650214961 2010149.77645264 T 18 CATAB v2.0f-lin.ifort 2020-Feb-23 05:40:35 2020-Feb-23 05:40
2000-Jul-22 10:07 < 00:01 Jupiter 1.88269475693838 1.8826944467883 1.88269506708846 1.70297646465048 1.41433051656662 2451747.921286601 0.318642715003101 96.3644468762032 48.837925990144 -62.3392405206 2392823.8152773 T 18 CATAB v2.0f-lin.ifort 2020-Feb-23 05:40:35 2020-Feb-23 05:40
2013-Jan-11 16:16 < 00:01 Jupiter 1.91594877497896 1.91594839798425 1.91594915197389 1.61290468179583 1.3104505938844 2456304.177449946 0.173901422419268 112.547331829295 60.9120965148065 -51.7737373993169 2275420.90821567 T 18 CATAB v2.0f-lin.ifort 2020-Feb-23 05:40:35 2020-Feb-23 05:40
2118-Aug-30 05:36 00:02 Jupiter 1.98250786166135 1.98250667722759 1.98250904609545 2.09080828550133 1.87536217563917 2494884.733300505 1.97590551143755 111.662780243557 24.3042562194654 -88.5201171533519 1413035.49819204 T 18 CATAB v2.0f-lin.ifort 2020-Feb-23 05:40:35 2020-Feb-23 05:40
2131-Feb-23 16:38 00:02 Jupiter 1.8847970041797 1.88479655977992 1.8847974485797 1.68305906335486 1.39064495468213 2499445.192892292 2.1591000638304 131.080507922336 78.2162755982606 76.5894798480439 1549657.67095608 T 18 CATAB v2.0f-lin.ifort 2020-Feb-23 05:40:35 2020-Feb-23 05:40
2143-Aug-15 16:36 00:02 Jupiter 1.92915194205895 1.92915116069647 1.92915272342286 1.59260648800739 1.28773678546302 2504001.191823286 2.44421972197699 127.618258950614 96.7323061056628 -77.4732414538948 2121185.77255318 T 18 CATAB v2.0f-lin.ifort 2020-Feb-23 05:40:35 2020-Feb-23 05:40

Alternate Designations
 1998 FB141 = 1995 UK18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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