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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 ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 127 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375187155421098 2.1611e-08  
a 2.676252366969312 5.0194e-09 au
q 2.308217578997161 5.6899e-08 au
i 4.943941169695979 8.8273e-07 deg
node 164.0646579805688 9.0886e-06 deg
peri 352.7514613369651 1.5725e-05 deg
M 196.3182511997358 1.1172e-05 deg
tp 2459927.587668764077
(2022-Dec-14.08766876)
5.0679e-05 TDB
period 1599.149341167383
4.38
4.4989e-06
1.232e-08
d
yr
n .2251196875316217 6.3333e-10 deg/d
Q 3.044287154941463 5.7097e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3239  
   data-arc span      43239 days (118.38 yr)  
   first obs. used      1902-09-03  
   last obs. used      2021-01-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44277  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:52:43  

Additional Information
 Earth MOID = 1.31751 au 
 Jupiter MOID = 1.94033 au 
 T_jup = 3.360 
[ 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 8.32   n/a MPCxxxxx 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

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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
1916-Jan-19 16:00 < 00:01 Jupiter 1.97315688971579 1.97315659376272 1.9731571856692 2.7439117126397 2.58273226632092 2420882.166743883 0.748763195497147 50.5160403743477 3.64528220421405 81.8122589819994 7638531.18606191 T 127 CATAB v2.0g-lin.ifort 2021-May-03 17:53:57 2021-May-03 17:53
1950-Aug-28 00:17 < 00:01 Jupiter 1.9645837305393 1.9645835403542 1.96458392072439 2.50599219207303 2.32759635052834 2433521.511468574 0.485492341491053 30.7552052886722 3.56887975348702 -84.3911085641948 6377603.43760215 T 127 CATAB v2.0g-lin.ifort 2021-May-03 17:53:57 2021-May-03 17:53
2034-Jan-05 04:51 < 00:01 Jupiter 1.94215476943433 1.94215458482719 1.94215495404146 2.51626856750635 2.33652674576977 2463967.701899305 0.188562320665869 13.2955820227928 4.0197529135634 -86.4799781198683 7235643.8223235 T 127 CATAB v2.0g-lin.ifort 2021-May-03 17:53:57 2021-May-03 17:53
2117-May-15 12:34 < 00:01 Jupiter 1.93856909536336 1.93856893954453 1.9385692511822 2.56398217913652 2.38749680360201 2494413.023395826 0.826463365125292 55.4253381019557 3.69320746462686 -87.785001960091 7829434.47462053 T 127 CATAB v2.0g-lin.ifort 2021-May-03 17:53:57 2021-May-03 17:53
2200-Sep-25 01:01 00:01 Jupiter 1.94994176315865 1.94994152712769 1.94994199919083 2.64092993747301 2.47098036249143 2524860.542233291 1.48901398757301 100.537161959719 3.4746634875967 86.9800474619487 7965418.62241626 T 127 CATAB v2.0g-lin.ifort 2021-May-03 17:53:57 2021-May-03 17:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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