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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 ]

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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01226432501612198 4.0657e-08  
a 2.947563551313085 1.2523e-08 au
q 2.911413673914107 1.2281e-07 au
i 3.02179062725108 3.4962e-06 deg
node 75.35870941138707 8.1435e-05 deg
peri 147.3432050654904 0.00017137 deg
M 339.2199219204297 0.00015006 deg
tp 2459107.193476755156
(2020-Sep-14.69347676)
0.00077037 TDB
period 1848.388224759285
5.06
1.178e-05
3.225e-08
d
yr
n .1947642790501345 1.2412e-09 deg/d
Q 2.983713428712064 1.2677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2479  
   data-arc span      14698 days (40.24 yr)  
   first obs. used      1980-05-22  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:00:50  

Additional Information
 Earth MOID = 1.90091 au 
 Jupiter MOID = 1.9771 au 
 T_jup = 3.268 
[ 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 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

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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
1916-Aug-25 06:30 00:02 Jupiter 1.97110503198269 1.97110465940424 1.97110540456113 3.46392746834885 3.3375671162304 2421100.770671085 1.83085524874943 85.2829522874815 13.7893017245029 89.3458932134748 3692109.75965962 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:57 2020-Nov-13 04:00
1951-Dec-23 18:40 00:01 Jupiter 1.96508261795315 1.96508223950276 1.96508299640354 3.44741704428271 3.32003179081497 2434004.277865474 1.15812633848892 63.7265456042443 13.7221574596681 -88.2369514377157 3639423.91263997 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:57 2020-Nov-13 04:00
1987-Apr-21 05:33 < 00:01 Jupiter 1.97502103604374 1.97502065885694 1.97502141323054 3.47657417724709 3.3509450646005 2446906.731130247 0.497869749024311 38.8212286416444 13.822284485618 -87.3471069834096 3670401.82878294 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:57 2020-Nov-13 04:00
2022-Aug-19 14:33 < 00:01 Jupiter 1.98436545032806 1.98436508286942 1.98436581778671 3.50945079223745 3.38563860598606 2459811.106061212 0.261478231199482 32.7863736172322 13.710216519721 -89.1692469073798 3777541.13794362 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:57 2020-Nov-13 04:00

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