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3374 Namur (1980 KO)
Classification: Main-belt Asteroid          SPK-ID: 2003374
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 .01226432518048711 4.0658e-08  
a 2.947563551155673 1.2526e-08 au
q 2.911413673274148 1.2282e-07 au
i 3.021790653746278 3.4963e-06 deg
node 75.35871108661468 8.1454e-05 deg
peri 147.3432019013154 0.0001714 deg
M 339.2199234717686 0.00015008 deg
tp 2459107.193468781397
(2020-Sep-14.69346878)
0.00077051 TDB
period 1848.388224611217
5.06
1.1782e-05
3.226e-08
d
yr
n .1947642790657363 1.2415e-09 deg/d
Q 2.983713429037198 1.2679e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2472  
   data-arc span      14683 days (40.20 yr)  
   first obs. used      1980-05-22  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:03:00  

Additional Information
 Earth MOID = 1.90091 au 
 Jupiter MOID = 1.9771 au 
 T_jup = 3.268 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456742.5 (2014-Mar-26.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01343913998766997 4.197e-08  
q 2.912148251406385 1.2655e-07 au
tp 2457201.202460016832
(2015-Jun-27.70246002)
0.00066547 TDB
node 75.42057551675059 8.1329e-05 deg
peri 136.1835891832312 0.00015343 deg
i 3.022948386678001 3.4971e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2472  
   data-arc span      14683 days (40.20 yr)  
   first obs. used      1980-05-22  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:03:00  

Additional Information
 Jupiter MOID = 1.9771 au 
 T_jup = 3.268 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.761519923772199E-15 -5.286605757132445E-15 -4.402711683268054E-12 -9.149925991329915E-15 -8.127106266161376E-13 -7.613985376195925E-16
q -5.286605757132445E-15 1.601396717517142E-14 1.171628944666962E-11 2.984165910237736E-14 2.13593866747814E-12 2.23352739749556E-15
tp -4.402711683268054E-12 1.171628944666962E-11 4.428535347889668E-7 8.682368553138927E-11 8.66026690520611E-8 3.736326919786172E-12
node -9.149925991329915E-15 2.984165910237736E-14 8.682368553138927E-11 6.614390423271838E-9 -6.588447024603042E-9 -9.715177245518694E-11
peri -8.127106266161376E-13 2.13593866747814E-12 8.66026690520611E-8 -6.588447024603042E-9 2.354013618154466E-8 9.773659327992621E-11
i -7.613985376195925E-16 2.23352739749556E-15 3.736326919786172E-12 -9.715177245518694E-11 9.773659327992621E-11 1.222997151846935E-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 12.7   n/a MPO337278  
diameter diameter 7.774 km 0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.8542 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.181   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3374 Namur (1980 KO)          Discovered 1980-May-22 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 KO = 1982 VV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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