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1861 Komensky (1970 WB)
Classification: Main-belt Asteroid          SPK-ID: 2001861
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06516365624975075 2.8282e-08  
a 3.01859172281242 1.3246e-08 au
q 2.821889249428729 8.9859e-08 au
i 10.45659532652626 4.3539e-06 deg
node 23.56377717247199 1.6631e-05 deg
peri 268.2911344893222 4.0225e-05 deg
M 270.8692926072858 3.8231e-05 deg
tp 2459474.774576292116
(2021-Sep-17.27457629)
0.00020421 TDB
period 1915.600722351257
5.24
1.2608e-05
3.452e-08
d
yr
n .1879306035957884 1.237e-09 deg/d
Q 3.215294196196112 1.4109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2645  
   data-arc span      18150 days (49.69 yr)  
   first obs. used      1970-11-24  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44129  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:42:13  

Additional Information
 Earth MOID = 1.83179 au 
 Jupiter MOID = 1.93137 au 
 T_jup = 3.219 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456887.5 (2014-Aug-18.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06353002142110917 2.8292e-08  
q 2.828529855785554 8.9687e-08 au
tp 2457554.059949421360
(2016-Jun-14.55994942)
0.00020637 TDB
node 23.59933107622609 1.6634e-05 deg
peri 267.4353481415125 4.1057e-05 deg
i 10.45386686198171 4.3525e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2645  
   data-arc span      18150 days (49.69 yr)  
   first obs. used      1970-11-24  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44129  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:42:13  

Additional Information
 Jupiter MOID = 1.93137 au 
 T_jup = 3.219 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.004592540320223E-16 -2.515298959347688E-15 -3.836381820258116E-13 -6.649616461860516E-16 -4.825847308524517E-14 4.903760477973947E-16
q -2.515298959347688E-15 8.04380350047083E-15 1.652332255737231E-12 2.080238124483442E-15 2.2155770904692E-13 -8.020231241382825E-16
tp -3.836381820258116E-13 1.652332255737231E-12 4.258937352814795E-8 -1.856388774340782E-12 7.751771219726776E-9 -3.674699960794271E-12
node -6.649616461860516E-16 2.080238124483442E-15 -1.856388774340782E-12 2.76681042017341E-10 -2.721023073606518E-10 -6.509014838883251E-12
peri -4.825847308524517E-14 2.2155770904692E-13 7.751771219726776E-9 -2.721023073606518E-10 1.685657610100681E-9 5.801915596568292E-12
i 4.903760477973947E-16 -8.020231241382825E-16 -3.674699960794271E-12 -6.509014838883251E-12 5.801915596568292E-12 1.894426578130673E-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 11.7   n/a MPO259348  
diameter diameter 14.815 km 0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.158   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1861 Komensky (1970 WB)          Discovered 1970-Nov-24 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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