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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456137.5 (2012-Jul-29.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07993433965621007 3.4394e-08  
q 2.770614374327361 1.0259e-07 au
tp 2456124.610414501256
(2012-Jul-16.11041450)
0.00015238 TDB
node 170.8228923167636 2.0782e-05 deg
peri 114.3899617715727 3.5291e-05 deg
i 10.78141414882219 4.4838e-06 deg
  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
 Jupiter MOID = 1.94885 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.182970568013306E-15 -3.505802445353093E-15 2.178554966440953E-13 -9.457507362633184E-16 4.344115990405122E-14 3.546830472301857E-16
q -3.505802445353093E-15 1.052501261167809E-14 -6.534189416152157E-13 3.653919232324365E-15 -1.326595215713572E-13 -4.486484993843456E-16
tp 2.178554966440953E-13 -6.534189416152157E-13 2.322017896138671E-8 3.518571229933395E-12 4.363522274300628E-9 2.292221936873265E-12
node -9.457507362633184E-16 3.653919232324365E-15 3.518571229933395E-12 4.319082976016015E-10 -4.234887916655073E-10 1.043987631571911E-11
peri 4.344115990405122E-14 -1.326595215713572E-13 4.363522274300628E-9 -4.234887916655073E-10 1.245455241950175E-9 -9.863149380673499E-12
i 3.546830472301857E-16 -4.486484993843456E-16 2.292221936873265E-12 1.043987631571911E-11 -9.863149380673499E-12 2.010449669774872E-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-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

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