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187946 (2001 KC66)
Classification: Main-belt Asteroid          SPK-ID: 2187946
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2174210655103739 4.5493e-08  
a 2.282975544433274 1.4639e-08 au
q 1.786608569028466 1.023e-07 au
i 7.595725177503518 5.8028e-06 deg
node 139.5441206836513 4.5221e-05 deg
peri 133.0747055156342 4.9799e-05 deg
M 216.6787329397342 2.6283e-05 deg
tp 2459702.101069731425
(2022-May-02.60106973)
9.5465e-05 TDB
period 1259.941310924787
3.45
1.2118e-05
3.318e-08
d
yr
n .2857275945145117 2.7482e-09 deg/d
Q 2.779342519838083 1.7821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      7261 days (19.88 yr)  
   first obs. used      2001-03-26  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:28  

Additional Information
 Earth MOID = .77865 au 
 Jupiter MOID = 2.36768 au 
 T_jup = 3.561 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458052.5 (2017-Oct-26.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217837547711237 4.5431e-08  
q 1.784949631692113 1.0216e-07 au
tp 2458442.252671356542
(2018-Nov-19.75267136)
8.6859e-05 TDB
node 139.5740692084418 4.5235e-05 deg
peri 133.0623602963819 4.9808e-05 deg
i 7.595673567998729 5.8034e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      7261 days (19.88 yr)  
   first obs. used      2001-03-26  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:28  

Additional Information
 Jupiter MOID = 2.36768 au 
 T_jup = 3.561 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.064005812763174E-15 -4.613335504006823E-15 1.537712398430049E-13 -1.743560237683061E-15 2.306617671311937E-14 2.451129325137176E-15
q -4.613335504006823E-15 1.04367973845837E-14 3.067353474337479E-13 3.914515082567901E-15 9.665630855233041E-14 -6.654033583488546E-15
tp 1.537712398430049E-13 3.067353474337479E-13 7.544469239739094E-9 1.01556134564703E-11 1.849725872650537E-9 -1.211989467307717E-11
node -1.743560237683061E-15 3.914515082567901E-15 1.01556134564703E-11 2.046183238777544E-9 -2.024710160444761E-9 6.935143511056294E-11
peri 2.306617671311937E-14 9.665630855233041E-14 1.849725872650537E-9 -2.024710160444761E-9 2.480873326672219E-9 -7.171097594396627E-11
i 2.451129325137176E-15 -6.654033583488546E-15 -1.211989467307717E-11 6.935143511056294E-11 -7.171097594396627E-11 3.367915058092157E-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 17.31   n/a MPCxxxxx  

187946 (2001 KC66)          Discovered 2001-May-22 by LONEOS at Anderson Mesa
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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