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100728 (1998 CK)
Classification: Main-belt Asteroid          SPK-ID: 2100728
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 .02967359251711751 3.5353e-08  
a 2.76747458259449 1.7364e-08 au
q 2.685353669529101 9.8897e-08 au
i 5.563630907532225 4.6802e-06 deg
node 312.6932030011001 4.1845e-05 deg
peri 134.9505789789369 0.00010418 deg
M 14.62010703861461 9.2963e-05 deg
tp 2459132.207668521768
(2020-Oct-09.70766852)
0.00043435 TDB
period 1681.604605713825
4.60
1.5826e-05
4.333e-08
d
yr
n .2140812404870784 2.0148e-09 deg/d
Q 2.849595495659878 1.7879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      8409 days (23.02 yr)  
   first obs. used      1998-02-02  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50716  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:30  

Additional Information
 Earth MOID = 1.70507 au 
 Jupiter MOID = 2.21281 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457373.5 (2015-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02745514949059093 3.4835e-08  
q 2.690620488642012 9.7023e-08 au
tp 2457442.639448018092
(2016-Feb-24.13944802)
0.00047924 TDB
node 312.869777883358 4.1815e-05 deg
peri 133.0764276024275 0.00011251 deg
i 5.565830864262575 4.6835e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      8409 days (23.02 yr)  
   first obs. used      1998-02-02  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50716  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:30  

Additional Information
 Jupiter MOID = 2.21281 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.213488234990788E-15 -3.328304165202762E-15 3.566851857911043E-12 -8.125384591327704E-15 7.97771965666345E-13 -5.92240573995348E-16
q -3.328304165202762E-15 9.413492391040975E-15 -1.137173597456527E-11 2.111572721791891E-14 -2.536861137103588E-12 2.002588360153853E-15
tp 3.566851857911043E-12 -1.137173597456527E-11 2.296743874902647E-7 -7.738511881474823E-11 5.007572595983624E-8 1.281715726272715E-11
node -8.125384591327704E-15 2.111572721791891E-14 -7.738511881474823E-11 1.748458065256555E-9 -1.756694902865753E-9 3.869580461550508E-11
peri 7.97771965666345E-13 -2.536861137103588E-12 5.007572595983624E-8 -1.756694902865753E-9 1.265876585898865E-8 -3.575520781331277E-11
i -5.92240573995348E-16 2.002588360153853E-15 1.281715726272715E-11 3.869580461550508E-11 -3.575520781331277E-11 2.193512055408069E-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 15.8   n/a MPO502723  

100728 (1998 CK)          Discovered 1998-Feb-02 by Tichy, M., Moravec, Z. at Klet
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 CK = 2001 VZ55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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