+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   215780 (2004 HR69) Classification: Main-belt Asteroid          SPK-ID: 2215780 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ 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 .1055301176462083 5.2598e-08   a 2.863895321367092 3.154e-08 au q 2.561668111176798 1.6362e-07 au i 14.06887704085176 5.0769e-06 deg node 225.0186261608535 2.2934e-05 deg peri 256.8703333603933 4.0213e-05 deg M 243.3196268962923 3.8962e-05 deg tp 2459774.258913171706 (2022-Jul-13.75891317) 0.00019641 TDB period 1770.248099551633 4.85 2.9244e-05 8.007e-08 d yr n .2033613255063968 3.3594e-09 deg/d Q 3.166122531557387 3.4869e-08 au   Orbit Determination Parameters    # obs. used (total)      321      data-arc span      6988 days (19.13 yr)      first obs. used      2001-09-29      last obs. used      2020-11-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50678      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 23:52:08   Additional Information  Earth MOID = 1.62142 au   Jupiter MOID = 2.09761 au   T_jup = 3.248  [ hide covariance matrix ] Orbital Elements at Epoch 2457979.5 (2017-Aug-14.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .102873914838511 5.2149e-08   q 2.570315171690984 1.6216e-07 au tp 2457995.313130510298 (2017-Aug-29.81313051) 0.00018817 TDB node 225.1657457213764 2.2856e-05 deg peri 255.4324144451084 4.1135e-05 deg i 14.09148670801504 5.0845e-06 deg   Orbit Determination Parameters    # obs. used (total)      321      data-arc span      6988 days (19.13 yr)      first obs. used      2001-09-29      last obs. used      2020-11-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50678      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 23:52:08   Additional Information  Jupiter MOID = 2.09761 au   T_jup = 3.248  Orbit Covariance (6×6)   e q tp node peri i e 2.719484908074949E-15 -8.345626686211169E-15 -1.705332389769417E-12 -4.473370287341326E-15 -2.513034126941499E-13 6.538271222945502E-15 q -8.345626686211169E-15 2.629485563513409E-14 7.087100835055439E-12 1.415049090663288E-14 1.105041745894622E-12 -1.787130960085773E-14 tp -1.705332389769417E-12 7.087100835055439E-12 3.540695984584421E-8 6.441704389251793E-11 6.480396656414286E-9 8.478822662440287E-12 node -4.473370287341326E-15 1.415049090663288E-14 6.441704389251793E-11 5.223772673253793E-10 -4.941440753576081E-10 -1.466821616424089E-11 peri -2.513034126941499E-13 1.105041745894622E-12 6.480396656414286E-9 -4.941440753576081E-10 1.692081330812444E-9 1.58706812940546E-11 i 6.538271222945502E-15 -1.787130960085773E-14 8.478822662440287E-12 -1.466821616424089E-11 1.58706812940546E-11 2.585212082837967E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.97   n/a E2021B55   215780 (2004 HR69)          Discovered 2004-Apr-22 by Spacewatch at Kitt Peak Reference: 20090607/Numbers.arc Last Updated: 2009-06-08 Alternate Designations  2004 HR69 = 2008 CX35  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-22 21:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin