+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   312077 (2007 TH43) Classification: Main-belt Asteroid          SPK-ID: 2312077 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1566321274433685 7.514e-08   a 2.461719365569173 1.7599e-08 au q 2.076135024171534 1.7686e-07 au i 2.318107148741915 5.7483e-06 deg node 59.9794623413643 0.0001641 deg peri 28.46486941448557 0.00016524 deg M 110.6688468657908 1.987e-05 deg tp 2458766.810283881620 (2019-Oct-10.31028388) 7.5893e-05 TDB period 1410.770078701146 3.86 1.5128e-05 4.142e-08 d yr n .2551797811954172 2.7364e-09 deg/d Q 2.847303706966812 2.0355e-08 au   Orbit Determination Parameters    # obs. used (total)      175      data-arc span      6938 days (19.00 yr)      first obs. used      2001-03-24      last obs. used      2020-03-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50493      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 06:28:35   Additional Information  Earth MOID = 1.0926 au   Jupiter MOID = 2.3481 au   T_jup = 3.471  [ hide covariance matrix ] Orbital Elements at Epoch 2457413.5 (2016-Jan-26.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1553056615041585 7.5348e-08   q 2.080019758735883 1.7722e-07 au tp 2457356.351521858071 (2015-Nov-29.85152186) 7.2083e-05 TDB node 60.00182847071657 0.00016421 deg peri 28.7531840337665 0.00016536 deg i 2.317982380979509 5.7423e-06 deg   Orbit Determination Parameters    # obs. used (total)      175      data-arc span      6938 days (19.00 yr)      first obs. used      2001-03-24      last obs. used      2020-03-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50493      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 06:28:35   Additional Information  Jupiter MOID = 2.3481 au   T_jup = 3.471  Orbit Covariance (6×6)   e q tp node peri i e 5.67729429833905E-15 -1.332134631908288E-14 2.429346627061547E-12 6.38636996149193E-14 6.291490108444866E-13 -2.161548756908277E-15 q -1.332134631908288E-14 3.140591541963715E-14 -5.759585097899478E-12 -1.478107992219328E-13 -1.493235350511234E-12 5.151470690687597E-15 tp 2.429346627061547E-12 -5.759585097899478E-12 5.195928592473553E-9 4.827568386514183E-11 1.457780922976426E-9 -9.837750195845215E-13 node 6.38636996149193E-14 -1.478107992219328E-13 4.827568386514183E-11 2.696430081511695E-8 -2.692844763214263E-8 3.875738469070554E-10 peri 6.291490108444866E-13 -1.493235350511234E-12 1.457780922976426E-9 -2.692844763214263E-8 2.734531245989391E-8 -3.875326612545038E-10 i -2.161548756908277E-15 5.151470690687597E-15 -9.837750195845215E-13 3.875738469070554E-10 -3.875326612545038E-10 3.297418086746896E-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 18.02   n/a E2021B25   312077 (2007 TH43)          Discovered 2007-Oct-07 by Mt. Lemmon Survey at Mount Lemmon Reference: 20120109/Numbers.arc Last Updated: 2012-01-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 04:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin