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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 
[ show covariance matrix ]

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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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 1.91880910841461 1.9188086605196 1.91880955631017 4.2691446713276 4.16446076979482 2425468.429795570 1.63058611906837 85.4244509934002 14.6360382814933 -81.3216161862272 3176447.88739265 T 40 CATAB v2.0f-lin.ifort 2020-Aug-24 22:42:30 2020-Aug-24 22:42
1975-Aug-22 07:06 < 00:01 Jupiter 1.96195644212353 1.96195601915749 1.9619568650898 4.49921730455323 4.40221643532373 2442646.796103585 0.71432509760591 68.3976790172398 16.6897180928329 -81.7808833215654 3736803.2860113 T 40 CATAB v2.0f-lin.ifort 2020-Aug-24 22:42:30 2020-Aug-24 22:42
2060-May-17 16:43 < 00:01 Jupiter 1.97777521982153 1.97777474989168 1.97777568975162 3.34203622762804 3.21133389983728 2473597.196787475 0.985886280822294 47.8168613414618 10.716555592696 -65.4562402911332 3713505.77088388 T 40 CATAB v2.0f-lin.ifort 2020-Aug-24 22:42:30 2020-Aug-24 22:42
2107-May-20 00:51 00:02 Jupiter 1.94264795065989 1.9426474566598 1.94264844466031 3.68304101272905 3.56269031284146 2490764.535687604 1.90858824956624 57.2777116258441 13.9605222032302 -67.0084067778193 3238096.248068 T 40 CATAB v2.0f-lin.ifort 2020-Aug-24 22:42:30 2020-Aug-24 22:42
2154-May-26 11:39 00:03 Jupiter 1.93033413265061 1.93033372860447 1.93033453669675 4.02054444923644 3.90988312642092 2507937.985706649 2.7932610471417 50.0918244534465 19.2729630507855 -81.3284243716239 2597950.65082592 T 40 CATAB v2.0f-lin.ifort 2020-Aug-24 22:42:30 2020-Aug-24 22:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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