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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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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 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
(2023-Jan-08.07480737)
0.00016373 TDB
period 1910.707229508788
5.23
1.2333e-05
3.377e-08
d
yr
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] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
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, http://obswww.unige.ch/~behrend/page_cou.html]
[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] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
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
(days_HH:MM)
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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