+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100323 (1995 OY1) Classification: Main-belt Asteroid          SPK-ID: 2100323 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2405737263085893 3.5593e-08   a 2.35116020665386 7.263e-09 au q 1.785532834590668 8.6635e-08 au i 7.411893434882646 4.4129e-06 deg node 202.7152839029724 2.6496e-05 deg peri 116.9081864256469 2.8912e-05 deg M 6.143478392288032 1.031e-05 deg tp 2459178.028420719860 (2020-Nov-24.52842072) 3.767e-05 TDB period 1316.805891432032 3.61 6.1017e-06 1.671e-08 d yr n .2733888132961634 1.2668e-09 deg/d Q 2.916787578717052 9.0103e-09 au   Orbit Determination Parameters    # obs. used (total)      808      data-arc span      9160 days (25.08 yr)      first obs. used      1995-07-22      last obs. used      2020-08-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4895      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:31:39   Additional Information  Earth MOID = .786191 au   Jupiter MOID = 2.45922 au   T_jup = 3.507  [ hide covariance matrix ] Orbital Elements at Epoch 2457560.5 (2016-Jun-21.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2398564559897588 3.5623e-08   q 1.787440301012174 8.6586e-08 au tp 2457861.679730869516 (2017-Apr-18.17973087) 3.5862e-05 TDB node 202.7463298158235 2.649e-05 deg peri 116.9598706513565 2.8923e-05 deg i 7.41164656268283 4.4132e-06 deg   Orbit Determination Parameters    # obs. used (total)      808      data-arc span      9160 days (25.08 yr)      first obs. used      1995-07-22      last obs. used      2020-08-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4895      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:31:39   Additional Information  Jupiter MOID = 2.45922 au   T_jup = 3.507  Orbit Covariance (6×6)   e q tp node peri i e 1.268981415872155E-15 -3.079876429098908E-15 7.260694823339382E-15 4.743497764501515E-15 7.539215844530412E-14 -3.962663045013105E-15 q -3.079876429098908E-15 7.497082166763696E-15 3.290267060125642E-14 -1.249901706064929E-14 -1.692392984778079E-13 1.002140468854882E-14 tp 7.260694823339382E-15 3.290267060125642E-14 1.286053076318322E-9 -1.654962984827349E-11 4.18051546849985E-10 6.698603458127215E-12 node 4.743497764501515E-15 -1.249901706064929E-14 -1.654962984827349E-11 7.017264549134726E-10 -7.002233282223364E-10 2.574202842673333E-11 peri 7.539215844530412E-14 -1.692392984778079E-13 4.18051546849985E-10 -7.002233282223364E-10 8.365467632756148E-10 -2.375079439607499E-11 i -3.962663045013105E-15 1.002140468854882E-14 6.698603458127215E-12 2.574202842673333E-11 -2.375079439607499E-11 1.947630226845339E-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 16.28   n/a E2021B55   100323 (1995 OY1)          Discovered 1995-Jul-22 by Laurie, S. P. at Church Stretton Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1995 OY1 = 1999 TN177  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-15 09:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin