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160545 (1998 KA11)
Classification: Main-belt Asteroid          SPK-ID: 2160545
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .2476599675125894 5.0328e-08  
a 2.734355953113429 2.3952e-08 au
q 2.057165446597502 1.3355e-07 au
i 16.12074524724907 5.4924e-06 deg
node 91.89416157417968 2.2969e-05 deg
peri 240.5124227442825 2.6183e-05 deg
M 284.7213092095702 1.6309e-05 deg
tp 2459545.842920816304
(2021-Nov-27.34292082)
7.7366e-05 TDB
period 1651.509214473142
4.52
2.17e-05
5.941e-08
d
yr
n .2179824350025475 2.8642e-09 deg/d
Q 3.411546459629356 2.9884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      8033 days (21.99 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53268  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:48  

Additional Information
 Earth MOID = 1.09402 au 
 Jupiter MOID = 2.08292 au 
 T_jup = 3.252 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457523.5 (2016-May-15.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2464975249058848 5.0331e-08  
q 2.061365586047728 1.334e-07 au
tp 2457893.612560316649
(2017-May-20.11256032)
6.7407e-05 TDB
node 91.90416863089958 2.2965e-05 deg
peri 240.5092666277176 2.6208e-05 deg
i 16.11739846596318 5.4915e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      8033 days (21.99 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53268  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:48  

Additional Information
 Jupiter MOID = 2.08292 au 
 T_jup = 3.252 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.533230033646146E-15 -6.657102101600215E-15 1.208223741793505E-12 -7.821612356224509E-15 2.802476923080591E-13 3.179446053370455E-15
q -6.657102101600215E-15 1.779571437435613E-14 -2.878549559999931E-12 1.237912730676562E-14 -6.934692973356274E-13 -5.175937446852913E-15
tp 1.208223741793505E-12 -2.878549559999931E-12 4.543759375960389E-9 2.052200342132399E-11 9.078075602862139E-10 2.587965910185913E-12
node -7.821612356224509E-15 1.237912730676562E-14 2.052200342132399E-11 5.274112889262915E-10 -5.025713610308736E-10 -3.578010049235796E-11
peri 2.802476923080591E-13 -6.934692973356274E-13 9.078075602862139E-10 -5.025713610308736E-10 6.868562915297361E-10 3.497177516672471E-11
i 3.179446053370455E-15 -5.175937446852913E-15 2.587965910185913E-12 -3.578010049235796E-11 3.497177516672471E-11 3.015660588994553E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.45   n/a E2021B55  

160545 (1998 KA11)          Discovered 1998-May-22 by Spacewatch at Kitt Peak
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

Alternate Designations
 1998 KA11 = 2003 OB11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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