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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 128 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1378646124236207 2.1628e-08  
a 2.675490856081123 4.934e-09 au
q 2.306635346164558 5.7042e-08 au
i 4.944679627121312 8.8296e-07 deg
node 164.0674877450464 9.0873e-06 deg
peri 352.7762042456812 1.5698e-05 deg
M 240.4398271814845 1.1207e-05 deg
tp 2459927.369368241463
(2022-Dec-13.86936824)
5.0539e-05 TDB
period 1598.46684779407
4.38
4.4217e-06
1.211e-08
d
yr
n .2252158063189175 6.2299e-10 deg/d
Q 3.044346365997689 5.6142e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3257  
   data-arc span      43400 days (118.82 yr)  
   first obs. used      1902-09-03  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44377  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:33:14  

Additional Information
 Earth MOID = 1.31691 au 
 Jupiter MOID = 1.93963 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

[ hide close-approach data ]
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 1.97315688883494 1.97315659319525 1.97315718447486 2.74391167716299 2.58273222855604 2420882.166735714 0.748156092616273 50.4757505846692 3.64406637974348 81.8145700994883 7642621.03445924 T 128 CATAB v2.0g-lin.ifort 2021-Jul-08 10:34:47 2021-Jul-08 10:34
1950-Aug-28 00:17 < 00:01 Jupiter 1.9645837310088 1.96458354097492 1.96458392104269 2.50599218368249 2.32759634153899 2433521.511475314 0.485125846725431 30.7278738275951 3.5665494478899 -84.3849505094423 6385193.10252926 T 128 CATAB v2.0g-lin.ifort 2021-Jul-08 10:34:47 2021-Jul-08 10:34
2034-Jan-05 04:51 < 00:01 Jupiter 1.94215476976244 1.94215458547038 1.94215495405438 2.51626856553651 2.33652674367992 2463967.701894232 0.18825253370898 13.2856486518438 4.01510168571741 -86.5129831740511 7243355.20594667 T 128 CATAB v2.0g-lin.ifort 2021-Jul-08 10:34:47 2021-Jul-08 10:34
2117-May-15 12:34 < 00:01 Jupiter 1.93856909557704 1.93856893995171 1.93856925120237 2.5639821595735 2.38749678261305 2494413.023385107 0.825506742665398 55.3643848380122 3.69144569866805 -87.7892296409433 7835123.37382899 T 128 CATAB v2.0g-lin.ifort 2021-Jul-08 10:34:47 2021-Jul-08 10:34
2200-Sep-25 01:01 00:01 Jupiter 1.94994176282961 1.9499415268953 1.94994199876513 2.64092993763515 2.47098036263505 2524860.542231249 1.4873921517611 100.427905145872 3.47357706257185 86.9784707587596 7969221.43034492 T 128 CATAB v2.0g-lin.ifort 2021-Jul-08 10:34:47 2021-Jul-08 10:34
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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