+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   201722 (2003 UK190) Classification: Main-belt Asteroid          SPK-ID: 2201722 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07534425963669486 9.5487e-08   a 2.854696535616818 2.991e-08 au q 2.639611538653331 2.8672e-07 au i 3.845830482079503 4.7331e-06 deg node 74.8178579229518 0.00013575 deg peri 281.556731054959 0.00013942 deg M 235.4534497272764 3.4263e-05 deg tp 2459809.991356298262 (2022-Aug-18.49135630) 0.00017113 TDB period 1761.725939312731 4.82 2.7688e-05 7.581e-08 d yr n .2043450641025584 3.2115e-09 deg/d Q 3.069781532580305 3.2164e-08 au   Orbit Determination Parameters    # obs. used (total)      187      data-arc span      6027 days (16.50 yr)      first obs. used      2003-10-22      last obs. used      2020-04-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54776      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 22:54:21   Additional Information  Earth MOID = 1.63687 au   Jupiter MOID = 2.27909 au   T_jup = 3.297  [ hide covariance matrix ] Orbital Elements at Epoch 2457238.5 (2015-Aug-04.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0737713901574734 9.523e-08   q 2.645699853910689 2.8536e-07 au tp 2458049.400386098330 (2017-Oct-22.90038610) 0.00016682 TDB node 74.84078914076325 0.00013574 deg peri 281.8534041470967 0.00013962 deg i 3.8453870253382 4.7319e-06 deg   Orbit Determination Parameters    # obs. used (total)      187      data-arc span      6027 days (16.50 yr)      first obs. used      2003-10-22      last obs. used      2020-04-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54776      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 22:54:21   Additional Information  Jupiter MOID = 2.27909 au   T_jup = 3.297  Orbit Covariance (6×6)   e q tp node peri i e 9.068749316374259E-15 -2.707444992711731E-14 -4.142125992074431E-12 2.104759892323698E-14 -9.038800338269372E-13 -4.362065867365819E-17 q -2.707444992711731E-14 8.142751706301026E-14 1.285899188646574E-11 -6.430842379598472E-14 2.736446542952952E-12 7.539960925396225E-16 tp -4.142125992074431E-12 1.285899188646574E-11 2.782969305800487E-8 -1.743465590378711E-11 5.593835510686902E-9 5.543107573245979E-13 node 2.104759892323698E-14 -6.430842379598472E-14 -1.743465590378711E-11 1.842597643263795E-8 -1.838830683770398E-8 -6.508082092988281E-11 peri -9.038800338269372E-13 2.736446542952952E-12 5.593835510686902E-9 -1.838830683770398E-8 1.949278815955844E-8 6.500057631389464E-11 i -4.362065867365819E-17 7.539960925396225E-16 5.543107573245979E-13 -6.508082092988281E-11 6.500057631389464E-11 2.239070237345334E-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 16.52   n/a E2021B55   201722 (2003 UK190)          Discovered 2003-Oct-22 by Spacewatch at Kitt Peak Reference: 20081212/Numbers.arc Last Updated: 2008-12-12 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 17:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin