Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06516365465478272 3.0149e-08  
a 3.018591722053593 1.4061e-08 au
q 2.821889253533907 9.3862e-08 au
i 10.45659458834329 4.4204e-06 deg
node 23.56376512341287 1.8641e-05 deg
peri 268.2911474271938 4.1076e-05 deg
M 270.869291826208 3.8259e-05 deg
tp 2459474.774580269481
(2021-Sep-17.27458027)
0.00020438 TDB
period 1915.600721628929
5.24
1.3385e-05
3.665e-08
d
yr
n .1879306036666526 1.3131e-09 deg/d
Q 3.215294190573279 1.4977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2300  
   data-arc span      17969 days (49.20 yr)  
   first obs. used      1970-11-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46575  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:06:42  

Additional Information
 Earth MOID = 1.83179 au 
 Jupiter MOID = 1.93137 au 
 T_jup = 3.219 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456505.5 (2013-Aug-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06202239485902875 3.0073e-08  
q 2.837711767277891 9.3292e-08 au
tp 2455627.478793305833
(2011-Mar-06.97879331)
0.00021041 TDB
node 23.77989832110691 1.8638e-05 deg
peri 266.1062024534781 4.2824e-05 deg
i 10.45059959786475 4.4177e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2300  
   data-arc span      17969 days (49.20 yr)  
   first obs. used      1970-11-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46575  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:06:42  

Additional Information
 Jupiter MOID = 1.93137 au 
 T_jup = 3.219 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.043939710419555E-16 -2.777445396683793E-15 -4.550767355845765E-13 -5.990824746173875E-16 -8.434995033741774E-14 1.50333892900585E-15
q -2.777445396683793E-15 8.703460227252609E-15 1.733660589837146E-12 4.248070489055922E-15 3.297226324816912E-13 -6.129318057186641E-15
tp -4.550767355845765E-13 1.733660589837146E-12 4.427291016040596E-8 -9.050677955139019E-13 8.124997070499269E-9 1.608960805596767E-12
node -5.990824746173875E-16 4.248070489055922E-15 -9.050677955139019E-13 3.473748566947349E-10 -3.411804864190111E-10 -4.702232987596082E-13
peri -8.434995033741774E-14 3.297226324816912E-13 8.124997070499269E-9 -3.411804864190111E-10 1.833922459627794E-9 6.523712701549286E-13
i 1.50333892900585E-15 -6.129318057186641E-15 1.608960805596767E-12 -4.702232987596082E-13 6.523712701549286E-13 1.951578142030771E-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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-28 16:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin