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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07605334957450716 3.42e-08  
a 3.012865003171084 1.3089e-08 au
q 2.783726527864115 1.0161e-07 au
i 10.79095379408919 4.6784e-06 deg
node 170.7479060470542 2.0768e-05 deg
peri 115.6323390787312 3.7625e-05 deg
M 105.506997423172 3.1483e-05 deg
tp 2458040.682205329386
(2017-Oct-14.18220533)
0.00016695 TDB
period 1910.15203733927
5.23
1.2447e-05
3.408e-08
d
yr
n .1884666733133238 1.2281e-09 deg/d
Q 3.242003478478053 1.4084e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2703  
   data-arc span      41587 days (113.86 yr)  
   first obs. used      1906-01-25  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42468  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:46:47  

Additional Information
 Earth MOID = 1.78831 au 
 Jupiter MOID = 1.94909 au 
 T_jup = 3.218 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456052.5 (2012-May-05.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08001902491130884 3.4528e-08  
q 2.77061241875228 1.0322e-07 au
tp 2456124.607892272427
(2012-Jul-16.10789227)
0.00015684 TDB
node 170.8248459342539 2.0803e-05 deg
peri 114.3877054436738 3.6097e-05 deg
i 10.78129702047399 4.6754e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2703  
   data-arc span      41587 days (113.86 yr)  
   first obs. used      1906-01-25  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42468  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:46:47  

Additional Information
 Jupiter MOID = 1.94909 au 
 T_jup = 3.218 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.192169431058691E-15 -3.540327152908097E-15 3.319106380125574E-13 -9.781175244758714E-16 6.682830509119563E-14 6.222662729357298E-17
q -3.540327152908097E-15 1.065424362852483E-14 -1.079522270557388E-12 3.694030997980202E-15 -2.199228372257617E-13 4.200798730225604E-16
tp 3.319106380125574E-13 -1.079522270557388E-12 2.459797650967771E-8 6.210754302049586E-12 4.643072912599033E-9 3.752654633707172E-12
node -9.781175244758714E-16 3.694030997980202E-15 6.210754302049586E-12 4.327561084837946E-10 -4.237841491664197E-10 1.162514776195597E-11
peri 6.682830509119563E-14 -2.199228372257617E-13 4.643072912599033E-9 -4.237841491664197E-10 1.303020306818583E-9 -1.074851180466262E-11
i 6.222662729357298E-17 4.200798730225604E-16 3.752654633707172E-12 1.162514776195597E-11 -1.074851180466262E-11 2.185957744949242E-11

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