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JPL Small-Body Database Browser
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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.

Note: If the applet is not working, here are some notes that might help.
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2297231807641976 4.0939e-08  
a 2.741567389839206 1.8892e-08 au
q 2.111765808765945 1.1421e-07 au
i 7.498372902157247 5.0672e-06 deg
node 283.7095224161988 4.1839e-05 deg
peri 321.4804893745076 4.409e-05 deg
M 4.030482527573644 1.6691e-05 deg
tp 2458981.936863534611
(2020-May-12.43686353)
7.6797e-05 TDB
period 1658.046916671089
4.54
1.7138e-05
4.692e-08
d
yr
n .2171229272105177 2.2442e-09 deg/d
Q 3.371368970912467 2.3232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      9693 days (26.54 yr)  
   first obs. used      1993-07-12  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 07:34:04  

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

[ 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
1918-Sep-04 23:40 00:03 Jupiter 1.90234692682139 1.90234472559456 1.90234912804962 2.52621716632456 2.34334600391499 2421841.485968208 3.00725505216336 187.904701056173 60.1483023101936 76.2529445417459 1239430.32256768 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 07:34:18 2020-Feb-23 07:34
1940-May-25 02:37 00:03 Jupiter 1.87115776223474 1.87115619961176 1.87115932485103 1.30489826291395 0.892980158844458 2429774.608830459 2.576016954234 575.114358523611 189.582476274061 -9.39201803827873 694110.961286608 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 07:34:18 2020-Feb-23 07:34
1977-May-09 08:36 00:01 Jupiter 1.72677429631907 1.72677373972721 1.72677485291221 1.99273637802079 1.72914784313553 2443272.858376047 1.15877048513893 230.657955503358 38.8678590244064 -80.824593296764 2135569.39261002 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 07:34:18 2020-Feb-23 07:34
2036-Jan-11 04:56 < 00:01 Jupiter 1.72289632254289 1.72289577000157 1.7228968750842 1.52681561629854 1.16099600951815 2464703.705454444 0.728296291191605 261.137847097888 96.1728658734774 -46.7790691306158 1966773.31001719 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 07:34:18 2020-Feb-23 07:34
2072-Dec-03 07:07 00:02 Jupiter 1.88950766716388 1.8895063942042 1.88950894012366 2.53823660177004 2.35501409285702 2478179.796746087 1.83854703790704 155.44706052135 46.4708818041118 87.8424038757785 1555658.10733932 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 07:34:18 2020-Feb-23 07:34
2094-Aug-28 18:59 00:03 Jupiter 1.88482826082733 1.88482655733007 1.88482996432116 1.42433167569961 1.06298692682876 2486118.291174167 2.79190332944519 265.479361021996 132.968014947791 -22.2761511840206 942027.040639578 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 07:34:18 2020-Feb-23 07:34
2131-Aug-11 03:07 00:04 Jupiter 1.71771838958461 1.71771740903355 1.71771937017482 2.07908730145915 1.8265776384226 2499613.629819832 3.57658694618125 532.229841366253 38.179361029361 -86.573065774919 2071567.14775887 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 07:34:18 2020-Feb-23 07:34
2190-Apr-19 18:11 00:06 Jupiter 1.71858981718139 1.7185882597891 1.71859137462244 1.67259299234766 1.34604949819733 2521050.257616415 5.59073296669237 636.390156642001 70.3673767760711 -58.1219772141149 1945732.32311609 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 07:34:18 2020-Feb-23 07:34

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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