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43843 Cleynaerts (1993 NC2)
Classification: Main-belt Asteroid          SPK-ID: 2043843
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2297231842203527 3.9426e-08  
a 2.741567388442219 1.6546e-08 au
q 2.111765798214596 1.0799e-07 au
i 7.498371527532237 4.9367e-06 deg
node 283.7095023711688 3.8062e-05 deg
peri 321.4805080520612 3.9748e-05 deg
M 4.030484318158558 1.1759e-05 deg
tp 2458981.936855301927
(2020-May-12.43685530)
5.4141e-05 TDB
period 1658.046915403783
4.54
1.501e-05
4.11e-08
d
yr
n .2171229273764727 1.9656e-09 deg/d
Q 3.371368978669842 2.0347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      9897 days (27.10 yr)  
   first obs. used      1993-07-12  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54367  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:00:09  

Additional Information
 Earth MOID = 1.10417 au 
 Jupiter MOID = 1.7167 au 
 T_jup = 3.299 
[ 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 14.6   n/a MPO431994  
diameter diameter 5.466 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43843 Cleynaerts           Discovered 1993 July 12 by E. W. Elst at the European Southern Observatory.
Nicolas Cleynaerts (Clenardus, 1495-1542) was a Flemish humanist who promoted tolerance between the nations and a grammarian who wrote manuals to study Greek and Hebrew. Desiring to bring Islam and Christianity closer together, he got into conflict with the Spanish and Portuguese authorities.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20101128/MPCPages.arcLast Updated: 2010-12-06

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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
1918-Sep-04 23:40 00:03 Jupiter 1.90234697289405 1.90234512065872 1.90234882513046 2.52621718060382 2.34334602391033 2421841.486023303 2.61203144526768 172.480880129999 53.8680400928307 79.1814362885325 1408687.00883963 T 24 CATAB v2.0f-lin.ifort 2020-Nov-13 00:00:11 2020-Nov-13 00:00
1940-May-25 02:37 00:02 Jupiter 1.87115766200425 1.87115641042696 1.87115891357771 1.30489820200161 0.892980042680273 2429774.608885960 2.24221992412148 438.04186656558 179.890503656105 -9.65781141854286 877888.221044037 T 24 CATAB v2.0f-lin.ifort 2020-Nov-13 00:00:11 2020-Nov-13 00:00
1977-May-09 08:36 00:01 Jupiter 1.72677425925063 1.72677373861175 1.72677477989038 1.99273639679873 1.72914785868624 2443272.858387404 1.01340265735937 209.724236050683 37.4689822209507 -79.7902507085319 2224771.31272342 T 24 CATAB v2.0f-lin.ifort 2020-Nov-13 00:00:11 2020-Nov-13 00:00
2036-Jan-11 04:56 < 00:01 Jupiter 1.72289625903904 1.72289572845259 1.7228967896255 1.5268156924768 1.16099609409154 2464703.705425176 0.643019952346124 236.455886545518 92.6841626572301 -44.2161893918944 1984729.5735108 T 24 CATAB v2.0f-lin.ifort 2020-Nov-13 00:00:11 2020-Nov-13 00:00
2072-Dec-03 07:07 00:02 Jupiter 1.88950762658642 1.88950643765967 1.88950881551317 2.53823628152471 2.35501374360848 2478179.796706369 1.61247355705973 146.182647750774 44.3868264187707 89.4560084724722 1640576.22098484 T 24 CATAB v2.0f-lin.ifort 2020-Nov-13 00:00:11 2020-Nov-13 00:00
2094-Aug-28 18:59 00:02 Jupiter 1.88482823804367 1.88482663214601 1.8848298439379 1.42433192212956 1.06298725191816 2486118.291124931 2.43875599712704 262.392281256169 125.349752894498 -22.621213670591 964183.111917403 T 24 CATAB v2.0f-lin.ifort 2020-Nov-13 00:00:11 2020-Nov-13 00:00
2131-Aug-11 03:07 00:03 Jupiter 1.71771832145514 1.71771746041034 1.71771918252855 2.07908708435321 1.82657738059602 2499613.629743862 3.11568616745734 468.162809400629 37.8139735348873 -86.3813165201615 2142840.79272516 T 24 CATAB v2.0f-lin.ifort 2020-Nov-13 00:00:11 2020-Nov-13 00:00
2190-Apr-19 18:11 00:05 Jupiter 1.71858978739502 1.71858834214492 1.7185912326798 1.67259293467292 1.34604942018494 2521050.257510816 4.87248861219145 541.872267621878 67.6736345821668 -57.0972920809617 1957571.64886841 T 24 CATAB v2.0f-lin.ifort 2020-Nov-13 00:00:11 2020-Nov-13 00:00

Alternate Designations
 1993 NC2 = 1998 SE69 = 2001 BU70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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