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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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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 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 
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Orbital Elements at Epoch 2456968.5 (2014-Nov-07.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2292840086535602 4.1018e-08  
q 2.114349436091701 1.1451e-07 au
tp 2457322.048475989370
(2015-Oct-26.54847599)		 7.1289e-05 TDB
node 283.7590893277191 4.1826e-05 deg
peri 321.0720490921277 4.4069e-05 deg
i 7.497808649093666 5.0669e-06 deg
   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
 Jupiter MOID = 1.7167 au 
 T_jup = 3.299 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.682454415852042E-15 -4.657200170488635E-15 -7.248903865222087E-13 6.425607518346858E-15 -1.146758264386423E-13 -7.200494313483722E-17
q -4.657200170488635E-15 1.311156177838973E-14 2.228387663808366E-12 -2.165239784992315E-14 3.509096189469031E-13 1.117151666929473E-16
tp -7.248903865222087E-13 2.228387663808366E-12 5.08215996202669E-9 -1.501660433135561E-11 1.02615645977335E-9 3.459004522801088E-12
node 6.425607518346858E-15 -2.165239784992315E-14 -1.501660433135561E-11 1.749383423958356E-9 -1.73743976138231E-9 4.990074663259284E-11
peri -1.146758264386423E-13 3.509096189469031E-13 1.02615645977335E-9 -1.73743976138231E-9 1.942061269028135E-9 -4.879251751701839E-11
i -7.200494313483722E-17 1.117151666929473E-16 3.459004522801088E-12 4.990074663259284E-11 -4.879251751701839E-11 2.567357675556114E-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 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 1.90234692682139 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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