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100728 (1998 CK)
Classification: Main-belt Asteroid          SPK-ID: 2100728
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02967359244032964 3.5361e-08  
a 2.767474584913448 1.7416e-08 au
q 2.685353671991756 9.8957e-08 au
i 5.563630937826901 4.6872e-06 deg
node 312.6932037707857 4.2054e-05 deg
peri 134.9505801188753 0.00010442 deg
M 14.62010487645874 9.3167e-05 deg
tp 2459132.207678535630
(2020-Oct-09.70767854)
0.00043529 TDB
period 1681.604607827433
4.60
1.5873e-05
4.346e-08
d
yr
n .2140812402179998 2.0208e-09 deg/d
Q 2.84959549783514 1.7932e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      8385 days (22.96 yr)  
   first obs. used      1998-02-02  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51068  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:02  

Additional Information
 Earth MOID = 1.70507 au 
 Jupiter MOID = 2.21281 au 
 T_jup = 3.331 
[ 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 15.8   n/a MPO502723  

100728 (1998 CK)          Discovered 1998-Feb-02 by Tichy, M., Moravec, Z. at Klet
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1952-Jan-17 22:16 < 00:01 David 0.0350659282262726 0.0350600032975197 0.0350718628700237 6.9979447177115 6.99794465614745 2434029.427925888 0.811836915540035 974.984480617326 40.9804715401951 72.5105741030442 122061.746215825 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26
2100-May-18 08:20 00:19 Iris 0.0440316713690406 0.0440113050243273 0.0440520392992167 2.86497727141785 2.86497722584705 2488206.846902955 18.545624811732 1096.55525383128 60.9469329474114 22.3575382206624 41439.9941329711 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26
2118-Oct-03 16:44 00:18 Iris 0.0160355048733162 0.0160210901921674 0.0160499572585534 3.04574559462033 3.04574547691482 2494919.197542298 17.6398276425819 1424.41922346672 62.6867441793337 59.7791534129829 33045.4192099859 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26
2137-Feb-21 06:53 00:14 Iris 0.0485742728173088 0.0485396081048351 0.0486089388375388 3.3169800490181 3.31698001333818 2501634.786595132 14.4391194930853 1772.80544568603 64.1143100565479 -12.9898562690202 25765.5142642868 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26
2146-Aug-07 19:16 00:04 Thisb 0.0408383106691708 0.0408312960444808 0.0408453685598022 3.5305578799895 3.53055783270012 2505089.302803378 4.14404957889503 2170.78897720937 73.5216937986395 80.9022571709638 81992.003569779 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26
2151-Mar-15 12:16 00:05 Thisb 0.0415892691459174 0.041575646671323 0.0416029352071655 3.41672194030604 3.41672189232343 2506770.010988346 4.58888365143074 2239.47326984579 73.3973498348606 -72.4305850814629 80754.6599617521 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26
2155-Oct-22 08:58 00:04 Thisb 0.0390010531498378 0.0389966688039366 0.0390054864428293 3.47221774307294 3.47221769272387 2508451.873665291 4.40512669870944 2319.578051998 73.2053819293849 84.8684284095178 79321.5358054605 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26
2160-May-30 08:00 00:05 Thisb 0.0393549810368 0.0393518662644286 0.039358141644119 3.45344325916706 3.45344320899953 2510133.833541954 4.59339312280881 2399.61913049634 73.1374929843112 86.6913096020178 80303.1622483979 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26
2165-Jan-06 18:07 00:05 Thisb 0.046763385326296 0.0467381197090983 0.0467886896663266 3.3091734806319 3.30917343657141 2511816.255112888 5.32780968085558 2468.9993931226 73.1323033487047 -59.3700772228701 82256.620438013 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 08:26:03 2021-Feb-24 08:26

Alternate Designations
 1998 CK = 2001 VZ55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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