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2913 Horta (1931 TK)
Classification: Main-belt Asteroid          SPK-ID: 2002913
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1977901897664159 4.9689e-08  
a 2.705093005494363 1.5189e-08 au
q 2.170052146601829 1.2995e-07 au
i 16.04239671094816 5.4047e-06 deg
node 30.22917351590376 1.6957e-05 deg
peri 22.60287410792559 2.0905e-05 deg
M 310.274387323129 1.4091e-05 deg
tp 2459224.965381659885
(2021-Jan-10.46538166)
6.4395e-05 TDB
period 1625.068713032568
4.45
1.3687e-05
3.747e-08
d
yr
n .2215290941933145 1.8658e-09 deg/d
Q 3.240133864386898 1.8194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1699  
   data-arc span      32115 days (87.93 yr)  
   first obs. used      1931-10-12  
   last obs. used      2019-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:48:18  

Additional Information
 Earth MOID = 1.18735 au 
 Jupiter MOID = 2.21684 au 
 T_jup = 3.282 
[ 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 12.2   n/a MPO435725  
diameter diameter 10.261 km 1.866 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.242   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2913 Horta (1931 TK)          Discovered 1931-Oct-12 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 TK = 1978 GO3 = 1982 FZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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