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JPL Small-Body Database Browser
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669 Kypria (A908 QF)
Classification: Main-belt Asteroid          SPK-ID: 2000669
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07603000889065607 3.4066e-08  
a 3.013448774516715 1.2967e-08 au
q 2.784336237398673 1.0103e-07 au
i 10.79061074746154 4.4863e-06 deg
node 170.7305301956058 2.0746e-05 deg
peri 115.8846070264191 3.6726e-05 deg
M 180.617766363477 3.0719e-05 deg
tp 2459952.574807374275
0.00016373 TDB
period 1910.707229508788
n .1884119107523083 1.2161e-09 deg/d
Q 3.242561311634757 1.3953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2810  
   data-arc span      41645 days (114.02 yr)  
   first obs. used      1906-01-25  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:33:48  

Additional Information
 Earth MOID = 1.78951 au 
 Jupiter MOID = 1.94885 au 
 T_jup = 3.217 
[ 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 10.1   n/a MPO502159 IRAS observations used: 4
diameter diameter 29.227 km 0.405 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 14.283 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site,]
[Bennefeld, C.S.; Sada, P.V. (2008) Minor Planet Bull. 35, 87-88.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.112   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.820   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=9.57 deg.
U-B UB 0.470   0.026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=9.57 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

669 Kypria (A908 QF)          Discovered 1908-Aug-20 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1941-Jan-20 23:51 00:01 Jupiter 1.9472917293217 1.94729129737845 1.94729216126516 3.5308341353897 3.40541339852379 2430015.493721940 1.41390741528773 87.7020640301257 16.0893084425613 80.5904135818065 2915069.6931615 T 40 CATAB v2.0f-lin.ifort 2020-Feb-22 15:34:06 2020-Feb-22 15:34
1987-Sep-27 15:48 < 00:01 Jupiter 1.96674521081453 1.9667448246561 1.96674559697297 4.32099816922563 4.22015174477557 2447066.158184809 0.488657621187887 49.5371663655264 17.2867650014625 88.5237087606192 3601003.77531313 T 40 CATAB v2.0f-lin.ifort 2020-Feb-22 15:34:06 2020-Feb-22 15:34
2071-Dec-04 19:20 00:01 Jupiter 1.97548250636647 1.97548208047814 1.97548293225481 3.13280171081051 2.99281000753929 2477815.305699533 1.21986975893163 63.4062263472154 14.5364145439217 77.5857513518928 2720113.95672427 T 40 CATAB v2.0f-lin.ifort 2020-Feb-22 15:34:06 2020-Feb-22 15:34
2118-Aug-02 08:33 00:02 Jupiter 1.96542765611321 1.96542723429541 1.96542807793123 3.96635261560274 3.85616794580769 2494856.856210165 2.02401046637453 142.160351100486 17.3833886204941 89.9291520062391 3097024.56128747 T 40 CATAB v2.0f-lin.ifort 2020-Feb-22 15:34:06 2020-Feb-22 15:34

Alternate Designations
 A908 QF = A906 BK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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