+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100622 (1997 TK26) Classification: Main-belt Asteroid          SPK-ID: 2100622 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .299790362262824 4.8755e-08   a 2.554789218229057 1.7162e-08 au q 1.788888032991011 1.2169e-07 au i 11.440974866235 5.1361e-06 deg node 217.0066329886693 2.5166e-05 deg peri 169.1489794247359 2.8212e-05 deg M 239.1128926154085 2.1156e-05 deg tp 2459701.350975425200 (2022-May-01.85097542) 9.2304e-05 TDB period 1491.526723188467 4.08 1.5029e-05 4.115e-08 d yr n .2413634260809089 2.4321e-09 deg/d Q 3.320690403467103 2.2307e-08 au   Orbit Determination Parameters    # obs. used (total)      385      data-arc span      8258 days (22.61 yr)      first obs. used      1997-10-13      last obs. used      2020-05-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .60664      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:33:00   Additional Information  Earth MOID = .793965 au   Jupiter MOID = 2.1408 au   T_jup = 3.347  [ hide covariance matrix ] Orbital Elements at Epoch 2457136.5 (2015-Apr-24.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2978050898824823 4.8565e-08   q 1.796478568106234 1.2094e-07 au tp 2456717.206802281755 (2014-Feb-28.70680228) 6.6277e-05 TDB node 217.0746435466052 2.5214e-05 deg peri 169.2619783594453 2.8304e-05 deg i 11.42021275986582 5.1282e-06 deg   Orbit Determination Parameters    # obs. used (total)      385      data-arc span      8258 days (22.61 yr)      first obs. used      1997-10-13      last obs. used      2020-05-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .60664      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:33:00   Additional Information  Jupiter MOID = 2.1408 au   T_jup = 3.347  Orbit Covariance (6×6)   e q tp node peri i e 2.358539783492662E-15 -5.847575347678817E-15 1.325106554503888E-13 -5.798680203683382E-15 -2.147710654589967E-14 8.878527519607647E-16 q -5.847575347678817E-15 1.462705946758003E-14 3.155973423221699E-13 1.677188005966713E-14 1.793040449877362E-13 -4.564112294846387E-15 tp 1.325106554503888E-13 3.155973423221699E-13 4.392661910904842E-9 1.350193662896224E-11 8.847226330439992E-10 -1.201627084227631E-11 node -5.798680203683382E-15 1.677188005966713E-14 1.350193662896224E-11 6.357662120254903E-10 -6.200680050501344E-10 -5.079541471014319E-11 peri -2.147710654589967E-14 1.793040449877362E-13 8.847226330439992E-10 -6.200680050501344E-10 8.011122991150317E-10 4.734374113627023E-11 i 8.878527519607647E-16 -4.564112294846387E-15 -1.201627084227631E-11 -5.079541471014319E-11 4.734374113627023E-11 2.629875255596768E-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 16.05   n/a E2021B55   100622 (1997 TK26)          Discovered 1997-Oct-13 by Beijing Schmidt CCD Asteroid Program at Xinglong Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1997 TK26 = 2001 QW191  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-15 00:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin