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100903 (1998 KU8)
Classification: Main-belt Asteroid          SPK-ID: 2100903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112824626990189 3.9536e-08  
a 2.373873767114671 9.4099e-09 au
q 2.109703248173554 9.2099e-08 au
i 6.566505620722246 3.2076e-06 deg
node 152.1696543479668 3.5994e-05 deg
peri 75.98373153327552 4.0501e-05 deg
M 70.66378911616742 1.6e-05 deg
tp 2458938.271869170005
(2020-Mar-29.77186917)
5.9795e-05 TDB
period 1335.933556345332
3.66
7.9433e-06
2.175e-08
d
yr
n .2694744796925677 1.6023e-09 deg/d
Q 2.638044286055789 1.0457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      695  
   data-arc span      9680 days (26.50 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53802  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:17  

Additional Information
 Earth MOID = 1.11063 au 
 Jupiter MOID = 2.35728 au 
 T_jup = 3.526 
[ 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 16.15   n/a E2021B55  

100903 (1998 KU8)          Discovered 1998-May-23 by LONEOS at Anderson Mesa
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
1958-Oct-07 21:55 < 00:01 Thisb 0.0443109867020323 0.044301920554146 0.0443200530403152 4.72089172967178 4.72089169707765 2436484.413395036 0.751047210052734 474.792066156509 44.5891094309684 17.9324782976493 47640.4236588678 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:19 2021-Apr-13 15:34
2072-Jul-02 20:18 < 00:01 Amphi 0.0333517117874043 0.0333506803823499 0.0333527434297863 5.22337867338492 5.22337864038572 2478026.345812539 0.691027338659703 574.262297438459 49.8530657210701 -88.7381276783326 100025.08005019 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:19 2021-Apr-13 15:34

Alternate Designations
 1998 KU8 = 2002 NH8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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