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100912 (1998 KU26)
Classification: Main-belt Asteroid          SPK-ID: 2100912
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1258484414293998 4.8149e-08  
a 3.165538069558078 2.67e-08 au
q 2.767160037218763 1.5076e-07 au
i 23.81435077615324 6.9235e-06 deg
node 37.69518501177792 1.1204e-05 deg
peri 34.35342221292672 2.655e-05 deg
M 141.3831062804881 2.3317e-05 deg
tp 2458392.586702066104
(2018-Oct-01.08670207)
0.00013155 TDB
period 2057.16789585307
5.63
2.6027e-05
7.126e-08
d
yr
n .1749978699967581 2.214e-09 deg/d
Q 3.563916101897393 3.006e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      11427 days (31.29 yr)  
   first obs. used      1989-10-30  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50707  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:20  

Additional Information
 Earth MOID = 1.80259 au 
 Jupiter MOID = 1.93515 au 
 T_jup = 3.060 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457324.5 (2015-Oct-29.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264114721197611 4.7889e-08  
q 2.765546535099598 1.4994e-07 au
tp 2456337.781980304268
(2013-Feb-14.28198030)
0.00013083 TDB
node 37.72152648534223 1.1205e-05 deg
peri 34.99218309000008 2.6539e-05 deg
i 23.814081928543 6.923e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      11427 days (31.29 yr)  
   first obs. used      1989-10-30  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50707  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:20  

Additional Information
 Jupiter MOID = 1.93515 au 
 T_jup = 3.060 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.293347878397149E-15 -7.095393736621286E-15 -2.484123073900851E-12 1.019275015428864E-14 -4.779908073222583E-13 -5.525472492615282E-15
q -7.095393736621286E-15 2.248189937810961E-14 7.629637292295209E-12 -3.051986703970789E-14 1.51870620023983E-12 1.974645348100753E-14
tp -2.484123073900851E-12 7.629637292295209E-12 1.711623681886547E-8 -1.164542192031712E-11 3.153412915419726E-9 -2.101913435581858E-12
node 1.019275015428864E-14 -3.051986703970789E-14 -1.164542192031712E-11 1.25554716807353E-10 -1.166253353016058E-10 -1.858541402019E-11
peri -4.779908073222583E-13 1.51870620023983E-12 3.153412915419726E-9 -1.166253353016058E-10 7.043088520124314E-10 1.693282498157949E-11
i -5.525472492615282E-15 1.974645348100753E-14 -2.101913435581858E-12 -1.858541402019E-11 1.693282498157949E-11 4.792853866417388E-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 13.79   n/a MPCxxxxx  

100912 (1998 KU26)          Discovered 1998-May-28 by Spacewatch at Kitt Peak
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
1958-Nov-21 23:37 00:02 Jupiter 1.96819437698933 1.96819379546604 1.96819495851475 6.19973429874659 6.12992619461921 2436529.483853995 1.86329727585588 436.709184473165 27.1581292945442 88.9595304953346 3519279.83108853 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:22 2021-Apr-13 15:34
2077-Sep-04 01:49 00:02 Jupiter 1.97518423406844 1.97518364091701 1.97518482722143 6.11945908646533 6.04897637633153 2479915.576002050 2.119408450039 537.881624977342 27.9750806872023 89.3187711343821 3479607.63450875 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:22 2021-Apr-13 15:34
2196-Jun-17 18:26 00:06 Jupiter 1.99818310958464 1.99818202654944 1.99818419294809 6.00172670258757 5.93067708851372 2523301.268011098 6.18115740270714 1565.33275911002 29.5816321272026 88.2455597517559 3403212.18246534 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:22 2021-Apr-13 15:34
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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