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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07603000879274333 3.4113e-08  
a 3.01344877457487 1.3035e-08 au
q 2.784336237747461 1.0125e-07 au
i 10.79061078698601 4.5542e-06 deg
node 170.7305302421963 2.0758e-05 deg
peri 115.8846066912738 3.7023e-05 deg
M 180.6177666161334 3.0977e-05 deg
tp 2459952.574806060856
(2023-Jan-08.07480606)
0.00016501 TDB
period 1910.707229564098
5.23
1.2398e-05
3.394e-08
d
yr
n .1884119107468542 1.2225e-09 deg/d
Q 3.242561311402278 1.4026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2763  
   data-arc span      41617 days (113.94 yr)  
   first obs. used      1906-01-25  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:36:45  

Additional Information
 Earth MOID = 1.78951 au 
 Jupiter MOID = 1.94885 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456102.5 (2012-Jun-24.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07997603202251162 3.4436e-08  
q 2.77061442932328 1.0279e-07 au
tp 2456124.609365987756
(2012-Jul-16.10936599)
0.00015383 TDB
node 170.8236255154669 2.0795e-05 deg
peri 114.3890246866645 3.5555e-05 deg
i 10.78135467206163 4.5516e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2763  
   data-arc span      41617 days (113.94 yr)  
   first obs. used      1906-01-25  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:36:45  

Additional Information
 Jupiter MOID = 1.94885 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.185854174224889E-15 -3.516682055850792E-15 2.5452149622465E-13 -9.632571485955015E-16 5.096128165607975E-14 2.811135883148729E-16
q -3.516682055850792E-15 1.05659069137637E-14 -7.906017530067531E-13 3.687644721704738E-15 -1.60758222558199E-13 -2.341905881934824E-16
tp 2.5452149622465E-13 -7.906017530067531E-13 2.366447471016508E-8 4.509828678406887E-12 4.453524908340782E-9 2.775718679630171E-12
node -9.632571485955015E-16 3.687644721704738E-15 4.509828678406887E-12 4.324123735253831E-10 -4.237863478485139E-10 1.099860858955225E-11
peri 5.096128165607975E-14 -1.60758222558199E-13 4.453524908340782E-9 -4.237863478485139E-10 1.264184650551767E-9 -1.031844050210925E-11
i 2.811135883148729E-16 -2.341905881934824E-16 2.775718679630171E-12 1.099860858955225E-11 -1.031844050210925E-11 2.071678357779316E-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

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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 1.94729172915581 1.94729129274642 1.94729216556554 3.53083408997036 3.40541335142079 2430015.493727464 1.41992171549309 88.1527332760933 16.1749572111775 80.5093538854772 2887437.92629102 T 39 CATAB v2.0f-lin.ifort 2020-Jan-28 17:37:17 2020-Jan-28 17:37
1987-Sep-27 15:48 < 00:01 Jupiter 1.96674520982882 1.96674481953615 1.96674560012149 4.32099820679603 4.22015178319262 2447066.158180494 0.489664887253084 49.6803302028401 17.4639489675145 88.4201619621475 3559365.94510535 T 39 CATAB v2.0f-lin.ifort 2020-Jan-28 17:37:17 2020-Jan-28 17:37
2071-Dec-04 19:20 00:01 Jupiter 1.97548250672568 1.97548207766091 1.97548293579045 3.13280174060358 2.99281003875201 2477815.305696446 1.23110940518891 64.1907018677256 14.5830181739599 77.6672798043456 2688893.79059187 T 39 CATAB v2.0f-lin.ifort 2020-Jan-28 17:37:17 2020-Jan-28 17:37
2118-Aug-02 08:33 00:02 Jupiter 1.96542765510445 1.96542722771689 1.96542808249236 3.96635261692336 3.85616794710869 2494856.856211615 2.03945491008927 143.396599312585 17.5190623900008 -89.9693779682327 3053521.64471755 T 39 CATAB v2.0f-lin.ifort 2020-Jan-28 17:37:17 2020-Jan-28 17:37

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