Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
114 Kassandra (A871 OA)
Classification: Main-belt Asteroid          SPK-ID: 2000114
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 122 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1367537295552031 3.2402e-08  
a 2.678060927392303 6.1438e-09 au
q 2.31182610759534 8.7263e-08 au
i 4.940905663085782 3.4361e-06 deg
node 164.0738342091793 3.7621e-05 deg
peri 352.7671804114873 3.9314e-05 deg
M 151.2944130666026 1.2335e-05 deg
tp 2458327.756520910156
(2018-Jul-28.25652091)
5.4106e-05 TDB
period 1600.770627040461
4.38
5.5086e-06
1.508e-08
d
yr
n .2248916827425649 7.739e-10 deg/d
Q 3.044295747189266 6.984e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3022  
   data-arc span      43165 days (118.18 yr)  
   first obs. used      1902-09-03  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:51:08  

Additional Information
 Earth MOID = 1.32133 au 
 Jupiter MOID = 1.9411 au 
 T_jup = 3.359 
[ hide covariance matrix ]
Orbital Elements at Epoch 2454305.5 (2007-Jul-24.0) TDB
Reference: JPL 122 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137441598554003 3.2017e-08  
q 2.308090223483909 8.6056e-08 au
tp 2453529.293555760200
(2005-Jun-07.79355576)
5.1417e-05 TDB
node 164.3480778350855 3.769e-05 deg
peri 352.9188190759586 3.9392e-05 deg
i 4.936689935161586 3.4325e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3022  
   data-arc span      43165 days (118.18 yr)  
   first obs. used      1902-09-03  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:51:08  

Additional Information
 Jupiter MOID = 1.9411 au 
 T_jup = 3.359 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.025060760098554E-15 -2.75051819886907E-15 -2.8463396329718E-13 6.268823099432416E-15 -7.971589472455829E-14 -3.808722435752095E-16
q -2.75051819886907E-15 7.405639371500979E-15 7.617772610096494E-13 -1.730003016638503E-14 2.160753474443052E-13 1.15513687430375E-15
tp -2.8463396329718E-13 7.617772610096494E-13 2.643731937672835E-9 -2.902004679514848E-12 6.006407911711976E-10 -8.554925901040396E-14
node 6.268823099432416E-15 -1.730003016638503E-14 -2.902004679514848E-12 1.420506244384374E-9 -1.415448231149623E-9 -2.273827603598432E-11
peri -7.971589472455829E-14 2.160753474443052E-13 6.006407911711976E-10 -1.415448231149623E-9 1.55172424660613E-9 2.266060208490932E-11
i -3.808722435752095E-16 1.15513687430375E-15 -8.554925901040396E-14 -2.273827603598432E-11 2.266060208490932E-11 1.178194843588285E-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 8.3   n/a MPO492749 IRAS observations used: 17
diameter diameter 94.178 km 0.954 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.7431 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Gil Hutton, R.; Blain, A. (1988) Minor Planet Bull. 15, 39-40.]
[Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.089   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.768   0.010 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=.00, mean=3.22, max.=9.27) deg.
U-B UB 0.269   0.182 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=.00, mean=3.22, max.=9.27) deg.
Tholen spectral type spec_T T   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B Xk   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

114 Kassandra (A871 OA)          Discovered 1871-Jul-23 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-17 03:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin