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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06516366030684405 2.8612e-08  
a 3.018591724625572 1.3386e-08 au
q 2.82188923887702 9.0562e-08 au
i 10.45659522785738 4.3579e-06 deg
node 23.56377352852887 1.7097e-05 deg
peri 268.2911384356568 4.0391e-05 deg
M 270.869291435415 3.8253e-05 deg
tp 2459474.774582955091
(2021-Sep-17.27458296)
0.00020433 TDB
period 1915.600724077199
5.24
1.2742e-05
3.489e-08
d
yr
n .1879306034264643 1.2501e-09 deg/d
Q 3.215294210374123 1.4258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2468  
   data-arc span      18053 days (49.43 yr)  
   first obs. used      1970-11-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45356  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:31:29  

Additional Information
 Earth MOID = 1.83179 au 
 Jupiter MOID = 1.93137 au 
 T_jup = 3.219 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456784.5 (2014-May-07.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06324601005707947 2.8607e-08  
q 2.830500703107541 9.032e-08 au
tp 2457553.029831796726
(2016-Jun-13.52983180)
0.00020753 TDB
node 23.61800872215119 1.7103e-05 deg
peri 267.1478471663286 4.1388e-05 deg
i 10.45133562842806 4.3555e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2468  
   data-arc span      18053 days (49.43 yr)  
   first obs. used      1970-11-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45356  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:31:29  

Additional Information
 Jupiter MOID = 1.93137 au 
 T_jup = 3.219 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.183864735659857E-16 -2.560596400367701E-15 -3.929452343853522E-13 -4.253949719882142E-16 -5.268437483700117E-14 6.122080093631802E-16
q -2.560596400367701E-15 8.157612776434013E-15 1.672983693473683E-12 1.296796675748411E-15 2.322635031057597E-13 -1.553600432576301E-15
tp -3.929452343853522E-13 1.672983693473683E-12 4.307043190226365E-8 6.012877248020437E-12 7.827382126575014E-9 -2.898065335763257E-12
node -4.253949719882142E-16 1.296796675748411E-15 6.012877248020437E-12 2.925289800179326E-10 -2.862547142774528E-10 -5.904285997297734E-12
peri -5.268437483700117E-14 2.322635031057597E-13 7.827382126575014E-9 -2.862547142774528E-10 1.712929829541502E-9 5.372361633733065E-12
i 6.122080093631802E-16 -1.553600432576301E-15 -2.898065335763257E-12 -5.904285997297734E-12 5.372361633733065E-12 1.897006964549861E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1928-Aug-09 22:19 00:02 Jupiter 1.91880911857424 1.9188086701571 1.91880956699193 4.26914471211551 4.16446081216927 2425468.429746791 1.64581647273969 86.6905982758816 14.7181229692824 -81.4955879129989 3165736.50971766 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:31:52 2020-May-20 01:32
1975-Aug-22 07:06 < 00:01 Jupiter 1.96195645107497 1.96195602711312 1.96195687503704 4.49921735119659 4.4022164834423 2442646.796080904 0.720747609685115 69.6714469728601 16.7896896866328 -82.0094203799896 3732163.05117159 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:31:52 2020-May-20 01:32
2060-May-17 16:43 < 00:01 Jupiter 1.97777522779855 1.97777475736234 1.977775698235 3.34203606128736 3.21133372726438 2473597.196818863 0.996186691194253 48.4879177397448 10.8374890935556 -65.7908833025406 3672293.53152805 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:31:52 2020-May-20 01:32
2107-May-20 00:51 00:02 Jupiter 1.94264796343847 1.94264746877217 1.94264845810509 3.68304086799764 3.56269016402593 2490764.535736948 1.92757660132261 58.2159841461374 14.1455210306403 -67.4189802458852 3217097.82899819 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:31:52 2020-May-20 01:32
2154-May-26 11:40 00:03 Jupiter 1.93033413963862 1.93033373509201 1.93033454418533 4.02054416221666 3.9098828316839 2507937.985800233 2.82064639088253 51.3148226162957 19.3018716816244 -81.4979167169129 2571759.47100148 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:31:52 2020-May-20 01:32
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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