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77593 (2001 KJ20)
Classification: Main-belt Asteroid          SPK-ID: 2077593
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2412385579675395 4.5772e-08  
a 2.597690009886413 9.7191e-09 au
q 1.971027017854731 1.1621e-07 au
i 3.952930257443516 4.4651e-06 deg
node 52.9086318693889 6.2789e-05 deg
peri 299.5712378974927 6.3537e-05 deg
M 137.1252221653876 1.2497e-05 deg
tp 2458618.002244088566
(2019-May-14.50224409)
5.0935e-05 TDB
period 1529.253253461983
4.19
8.5824e-06
2.35e-08
d
yr
n .2354090136378771 1.3212e-09 deg/d
Q 3.224353001918094 1.2064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      887  
   data-arc span      8145 days (22.30 yr)  
   first obs. used      1998-11-18  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52605  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:32:10  

Additional Information
 Earth MOID = .967815 au 
 Jupiter MOID = 2.22241 au 
 T_jup = 3.371 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457255.5 (2015-Aug-21.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2435428884586565 4.614e-08  
q 1.963397303862118 1.1744e-07 au
tp 2457087.174459275623
(2015-Mar-05.67445928)
4.5029e-05 TDB
node 52.95650595702286 6.2884e-05 deg
peri 299.1333532786157 6.3604e-05 deg
i 3.953897890394837 4.463e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      887  
   data-arc span      8145 days (22.30 yr)  
   first obs. used      1998-11-18  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52605  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:32:10  

Additional Information
 Jupiter MOID = 2.22241 au 
 T_jup = 3.371 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.128858435479735E-15 -5.409428650781435E-15 8.553648600763729E-13 -6.605058884905109E-15 1.356713094056116E-13 2.367384819443846E-16
q -5.409428650781435E-15 1.379106544473745E-14 -2.047500935551179E-12 1.588452086198651E-14 -3.170648471452643E-13 -5.535327432426477E-16
tp 8.553648600763729E-13 -2.047500935551179E-12 2.027571733600036E-9 -7.671935634433741E-12 4.488380041880282E-10 -5.520429415091401E-14
node -6.605058884905109E-15 1.588452086198651E-14 -7.671935634433741E-12 3.954424216909499E-9 -3.945903842319541E-9 -3.666132177187888E-11
peri 1.356713094056116E-13 -3.170648471452643E-13 4.488380041880282E-10 -3.945903842319541E-9 4.045459264439116E-9 3.653081033778075E-11
i 2.367384819443846E-16 -5.535327432426477E-16 -5.520429415091401E-14 -3.666132177187888E-11 3.653081033778075E-11 1.991799948485827E-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 15.33   n/a E2021B10  

77593 (2001 KJ20)          Discovered 2001-May-22 by Kusnirak, P., Pravec, P. at Ondrejov
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 KJ20 = 1998 WM35 = 2002 PQ60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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