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165655 (2001 KB2)
Classification: Main-belt Asteroid          SPK-ID: 2165655
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05168240945154429 4.5073e-08  
a 2.670579081552893 1.7673e-08 au
q 2.532557119987348 1.1751e-07 au
i 10.16115161507537 6.2808e-06 deg
node 60.4703620814689 2.4827e-05 deg
peri 209.3551763533512 6.4033e-05 deg
M 183.9181002100438 6.0691e-05 deg
tp 2460176.184329630752
(2023-Aug-19.68432963)
0.00027063 TDB
period 1594.067073344248
4.36
1.5823e-05
4.332e-08
d
yr
n .2258374230418947 2.2417e-09 deg/d
Q 2.808601043118439 1.8586e-08 au
  Orbit Determination Parameters
   # obs. used (total)      600  
   data-arc span      7232 days (19.80 yr)  
   first obs. used      2001-04-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53089  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:11:41  

Additional Information
 Earth MOID = 1.52177 au 
 Jupiter MOID = 2.22487 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457370.5 (2015-Dec-14.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05224168084234292 4.4217e-08  
q 2.531211732992435 1.1508e-07 au
tp 2456995.464213824708
(2014-Dec-03.96421382)
0.00026602 TDB
node 60.48833207694384 2.4817e-05 deg
peri 210.9968460613805 6.437e-05 deg
i 10.16397702102974 6.2844e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      600  
   data-arc span      7232 days (19.80 yr)  
   first obs. used      2001-04-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53089  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:11:41  

Additional Information
 Jupiter MOID = 2.22487 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.955161818602798E-15 -5.037386928479515E-15 -5.300479190292666E-12 -8.634646539762013E-15 -1.189777954676019E-12 1.586829497735317E-15
q -5.037386928479515E-15 1.324257618891742E-14 1.470496082471067E-11 2.156772810143348E-14 3.310602891784164E-12 -3.791781201777984E-15
tp -5.300479190292666E-12 1.470496082471067E-11 7.076535444189326E-8 6.444936011470388E-11 1.581783674513151E-8 -1.873892774430495E-11
node -8.634646539762013E-15 2.156772810143348E-14 6.444936011470388E-11 6.158701851110397E-10 -5.916442632255031E-10 -6.60058910685414E-11
peri -1.189777954676019E-12 3.310602891784164E-12 1.581783674513151E-8 -5.916442632255031E-10 4.14344174459309E-9 6.0863834867954E-11
i 1.586829497735317E-15 -3.791781201777984E-15 -1.873892774430495E-11 -6.60058910685414E-11 6.0863834867954E-11 3.949392712150559E-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 15.54   n/a MPCxxxxx  

165655 (2001 KB2)          Discovered 2001-May-19 by Kusnirak, P., Pravec, P. at Ondrejov
Reference: 20071026/Numbers.arcLast Updated: 2007-10-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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