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100917 (1998 KX51)
Classification: Main-belt Asteroid          SPK-ID: 2100917
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043520627914867 3.8388e-08  
a 2.350184400216953 9.3882e-09 au
q 1.869919370092246 8.7133e-08 au
i 10.15985328234136 3.3116e-06 deg
node 155.8948140205675 1.965e-05 deg
peri 44.97535131687575 2.1266e-05 deg
M 67.02112843886641 9.4749e-06 deg
tp 2458755.503110392267
(2019-Sep-29.00311039)
3.3841e-05 TDB
period 1315.986201862222
3.60
7.8854e-06
2.159e-08
d
yr
n .2735590992447887 1.6392e-09 deg/d
Q 2.830449430341661 1.1307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      8180 days (22.40 yr)  
   first obs. used      1998-05-19  
   last obs. used      2020-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:30  

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 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:03:31 2020-Nov-12 20:03
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 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:03:31 2020-Nov-12 20:03

Alternate Designations
 1998 KX51 = 2002 NF35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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