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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112824617681397 3.9536e-08  
a 2.373873765640363 9.4099e-09 au
q 2.1097032490731 9.2099e-08 au
i 6.566505636527352 3.2076e-06 deg
node 152.1696544237141 3.5994e-05 deg
peri 75.98373110171809 4.0501e-05 deg
M 70.66378953622382 1.6e-05 deg
tp 2458938.271867855494
(2020-Mar-29.77186786)
5.9795e-05 TDB
period 1335.933555100798
3.66
7.9433e-06
2.175e-08
d
yr
n .2694744799436058 1.6023e-09 deg/d
Q 2.638044282207627 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:35  

Additional Information
 Earth MOID = 1.11063 au 
 Jupiter MOID = 2.35728 au 
 T_jup = 3.526 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457624.5 (2016-Aug-24.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108197220102004 3.9617e-08  
q 2.10993733498248 9.2154e-08 au
tp 2457601.430379063418
(2016-Jul-31.93037906)
6.2582e-05 TDB
node 152.2049411227389 3.6017e-05 deg
peri 75.53544967128386 4.055e-05 deg
i 6.564702114770709 3.2069e-06 deg
  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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:35  

Additional Information
 Jupiter MOID = 2.35728 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.569477066472775E-15 -3.637068990061255E-15 -2.882928655189352E-13 -6.405574645666776E-15 -1.023724411377123E-13 -4.217847536045766E-15
q -3.637068990061255E-15 8.492318899408041E-15 4.87842898744546E-13 1.626311609189676E-14 1.842955869654035E-13 1.006014171385635E-14
tp -2.882928655189352E-13 4.87842898744546E-13 3.916544456138543E-9 -1.793666687604111E-11 1.182944696879676E-9 -2.157615315780395E-12
node -6.405574645666776E-15 1.626311609189676E-14 -1.793666687604111E-11 1.297235650338331E-9 -1.293882060916729E-9 4.528047859465981E-12
peri -1.023724411377123E-13 1.842955869654035E-13 1.182944696879676E-9 -1.293882060916729E-9 1.644308040986293E-9 -5.075063768979135E-12
i -4.217847536045766E-15 1.006014171385635E-14 -2.157615315780395E-12 4.528047859465981E-12 -5.075063768979135E-12 1.028423995507226E-11

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

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