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JPL Small-Body Database Browser
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1106 Cydonia (1929 CW)
Classification: Main-belt Asteroid          SPK-ID: 2001106
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1263606588727024 4.0888e-08  
a 2.596175143110225 9.2418e-09 au
q 2.268120741477885 1.0516e-07 au
i 13.06423173846033 4.339e-06 deg
node 328.2590423870278 1.6114e-05 deg
peri 230.228550660641 2.1472e-05 deg
M 165.7783280313411 1.5364e-05 deg
tp 2457896.901892670114
(2017-May-23.40189267)
6.468e-05 TDB
period 1527.915751393464
4.18
8.1586e-06
2.234e-08
d
yr
n .2356150852373102 1.2581e-09 deg/d
Q 2.924229544742566 1.041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2497  
   data-arc span      33174 days (90.83 yr)  
   first obs. used      1929-02-05  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42295  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:53:41  

Additional Information
 Earth MOID = 1.29236 au 
 Jupiter MOID = 2.1284 au 
 T_jup = 3.369 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.7   n/a MPO416716  
diameter diameter 12.140 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 2.679 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 234-239.]
[Aznar Macias, A. (2017) Minor Planet Bull. 44, 276-279.]
geometric albedo albedo 0.241   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   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)

1106 Cydonia (1929 CW)          Discovered 1929-Feb-05 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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