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940 Kordula (A920 TE)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000940
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 .1698782425177489 4.3573e-08  
a 3.365726069300375 1.6472e-08 au
q 2.793962439851456 1.4919e-07 au
i 6.242753244567393 4.3283e-06 deg
node 66.31985865889678 4.5212e-05 deg
peri 283.5052626487616 4.688e-05 deg
M 41.35853403087161 1.1984e-05 deg
tp 2458741.392960248650
(2019-Sep-14.89296025)
7.5504e-05 TDB
period 2255.363650966432
6.17
1.6557e-05
4.533e-08
d
yr
n .1596194918924665 1.1718e-09 deg/d
Q 3.937489698749294 1.927e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2830  
   data-arc span      36456 days (99.81 yr)  
   first obs. used      1920-10-10  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:24:57  

Additional Information
 Earth MOID = 1.79684 au 
 Jupiter MOID = 1.54794 au 
 T_jup = 3.122 
[ 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 9.2   n/a MPO502162 IRAS observations used: 6
diameter diameter 79.852 km 0.504 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.57 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Zappala, V.; Di Martino, M.; Cellino, A.; Farinella, P.; et al. (1989) Icarus 82, 354-368.]
geometric albedo albedo 0.041   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.580   0.026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.81 deg.
U-B UB 0.363   0.037 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.81 deg.
Tholen spectral type spec_T FC:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

940 Kordula (A920 TE)          Discovered 1920-Oct-10 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A920 TE = 1947 BG = 1947 EB = 1954 DB = 1963 PC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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