Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
100917 (1998 KX51)
Classification: Main-belt Asteroid          SPK-ID: 2100917
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043520632606486 3.8907e-08  
a 2.350184400207993 9.4463e-09 au
q 1.8699193689825 8.8539e-08 au
i 10.15985296762134 3.3364e-06 deg
node 155.8948091146923 2.0703e-05 deg
peri 44.97535629074468 2.2257e-05 deg
M 67.02112832697992 9.4849e-06 deg
tp 2458755.503110802671
(2019-Sep-29.00311080)
3.3886e-05 TDB
period 1315.986201854696
3.60
7.9342e-06
2.172e-08
d
yr
n .2735590992463531 1.6493e-09 deg/d
Q 2.830449431433486 1.1377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      8108 days (22.20 yr)  
   first obs. used      1998-05-19  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57276  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:04:51  

Additional Information
 Earth MOID = .883954 au 
 Jupiter MOID = 2.15385 au 
 T_jup = 3.509 
[ 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 15.9   n/a MPO422321  

100917 (1998 KX51)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1997-Jan-04 05:26 < 00:01 David 0.0425791054175522 0.0425758410598995 0.0425823698323505 5.25457683029867 5.25457676277613 2450452.726235528 0.95673600100567 181.870579862472 47.3153530174842 -27.5660460026742 69569.4383724093 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 09:05:05 2020-Aug-25 09:05
2115-Nov-06 21:29 00:03 David 0.032617695529016 0.0326050636185068 0.0326303301631907 5.00690631967855 5.0069062271746 2493857.394910810 2.94962157989566 786.353301529849 46.7219439352882 -36.8782728180233 62832.9291035554 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 09:05:05 2020-Aug-25 09:05

Alternate Designations
 1998 KX51 = 2002 NF35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-31 23:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin