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JPL Small-Body Database Browser
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553 Kundry (A904 YA)
Classification: Main-belt Asteroid          SPK-ID: 2000553
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 .109320842562496 3.7884e-08  
a 2.23166140068339 6.1043e-09 au
q 1.987694296046482 8.4797e-08 au
i 5.386856925546579 4.0464e-06 deg
node 72.36311533707882 4.3639e-05 deg
peri 354.61750124999 4.7579e-05 deg
M 244.9752757533709 1.9304e-05 deg
tp 2459389.571643626434
(2021-Jun-24.07164363)
6.5522e-05 TDB
period 1217.701608266372
3.33
4.9962e-06
1.368e-08
d
yr
n .2956389295670948 1.213e-09 deg/d
Q 2.475628505320299 6.7716e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2444  
   data-arc span      41871 days (114.64 yr)  
   first obs. used      1904-12-27  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:30:28  

Additional Information
 Earth MOID = 1.00165 au 
 Jupiter MOID = 2.76471 au 
 T_jup = 3.628 
[ 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 MPO384749  
diameter diameter 9.010 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.605 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2005) Minor Planet Bull. 32, 66-68.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.]
geometric albedo albedo 0.287   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
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)

553 Kundry (A904 YA)          Discovered 1904-Dec-27 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A904 YA = 1932 CL = 1957 UB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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