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JPL Small-Body Database Browser
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1360 Tarka (1935 OD)
Classification: Main-belt Asteroid          SPK-ID: 2001360
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2140007468162199 4.2602e-08  
a 2.63416560420062 1.3418e-08 au
q 2.070452197664088 1.1247e-07 au
i 22.82968880663344 5.0202e-06 deg
node 331.3993527364689 1.1597e-05 deg
peri 288.1607559623873 1.8421e-05 deg
M 335.461437234944 1.9363e-05 deg
tp 2459106.941175068530
(2020-Sep-14.44117507)
8.4414e-05 TDB
period 1561.575687686092
4.28
1.1931e-05
3.267e-08
d
yr
n .230536376071172 1.7615e-09 deg/d
Q 3.197879010737152 1.6289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2136  
   data-arc span      30850 days (84.46 yr)  
   first obs. used      1935-07-22  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:00:14  

Additional Information
 Earth MOID = 1.16622 au 
 Jupiter MOID = 2.38264 au 
 T_jup = 3.256 
[ 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 11.5   n/a MPO439076  
diameter diameter 33.316 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.87 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2005) Minor Planet Bull. 32, 29-32.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 144-155.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.030   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1360 Tarka (1935 OD)          Discovered 1935-Jul-22 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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