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99 Dike (A868 KA)
Classification: Main-belt Asteroid          SPK-ID: 2000099
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 99 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1949610491646544 4.1072e-08  
a 2.664873396932893 8.4125e-09 au
q 2.14532688357588 1.1056e-07 au
i 13.84752111253251 4.8367e-06 deg
node 41.51414405881997 1.4898e-05 deg
peri 195.7124947401775 1.7766e-05 deg
M 334.9314335566453 9.994e-06 deg
tp 2459111.147166670960
(2020-Sep-18.64716667)
4.4223e-05 TDB
period 1588.961223273497
4.35
7.5241e-06
2.06e-08
d
yr
n .2265631122566643 1.0728e-09 deg/d
Q 3.184419910289907 1.0053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3017  
   data-arc span      38587 days (105.65 yr)  
   first obs. used      1915-01-20  
   last obs. used      2020-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:33:23  

Additional Information
 Earth MOID = 1.13748 au 
 Jupiter MOID = 1.82697 au 
 T_jup = 3.316 
[ 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 9.5   n/a MPO502153 IRAS observations used: 3
diameter diameter 67.354 km 0.416 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 18.127 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2011) Minor Planet Bull. 38, 183-185.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.065   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.703   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.84, mean=7.96, max.=15.22) deg.
U-B UB 0.322   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.84, mean=7.96, max.=15.22) deg.
Tholen spectral type spec_T C   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)

99 Dike (A868 KA)          Discovered 1868-May-28 by Borrelly, A. at Marseille
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
1905-Mar-29 03:02 00:01 Jupiter 1.8099739361507 1.80997358210756 1.80997429019692 3.61445177799898 3.48257256870858 2416933.626305464 1.36632688027599 295.402021303484 12.359512517394 -87.8375540613429 3099008.68091715 T 99 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:32 2020-Nov-13 04:33
1953-Apr-30 20:07 < 00:01 Jupiter 1.88836522485258 1.88836471398396 1.88836573572924 3.39636811383852 3.26162847203261 2434498.338515454 0.788458061759615 262.570032018727 10.7131916800403 -84.769696741098 2912794.6995389 T 99 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:32 2020-Nov-13 04:33
1987-Jul-15 00:54 < 00:01 Jupiter 1.96910629567343 1.96910587471755 1.96910671665919 3.71734680601229 3.599771611355 2446991.537472170 0.359567750142073 749.883141622996 14.3312663265053 -88.9395526454296 3229714.78127473 T 99 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:32 2020-Nov-13 04:33
2035-Aug-21 02:22 < 00:01 Jupiter 1.82066767872068 1.82066733469746 1.82066802275084 3.6349856420746 3.50466374809505 2464560.598370762 0.334568135006123 304.591533430004 8.96040313555406 -87.4077275626286 3136724.75639799 T 99 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:32 2020-Nov-13 04:33
2083-Sep-22 12:02 < 00:01 Jupiter 1.86574689904714 1.86574633933137 1.8657474587787 3.39547821900062 3.25903372557182 2482125.001324119 0.959474729903895 339.392561744093 9.76824080600011 -85.432132818668 2824036.28644377 T 99 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:32 2020-Nov-13 04:33
2166-Jan-13 12:19 00:02 Jupiter 1.83911166750556 1.83911102590925 1.83911230910218 3.66551600271667 3.53763850766691 2512188.013438926 1.98579443136977 370.120030215691 29.1336062462115 -88.8825335999387 2899434.92422241 T 99 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:32 2020-Nov-13 04:33

Alternate Designations
 A868 KA = 1935 UC = 1935 YL = 1939 UT = 1948 UE = 1948 WC = 1961 XJ = 1974 VB = A915 BA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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