+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1006 Lagrangea (A923 RU) Classification: Main-belt Asteroid          SPK-ID: 2001006 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3574288609907323 3.5797e-08   a 3.142834641466138 9.1697e-09 au q 2.01949483528468 1.1255e-07 au i 10.91871495974287 4.2255e-06 deg node 294.5872536189774 2.0739e-05 deg peri 86.20197548742956 2.1385e-05 deg M 100.0814243402998 4.9839e-06 deg tp 2458434.740701105301 (2018-Nov-12.24070111) 2.738e-05 TDB period 2035.076428464443 5.57 8.9065e-06 2.438e-08 d yr n .17689753316618 7.7419e-10 deg/d Q 4.266174447647596 1.2447e-08 au   Orbit Determination Parameters    # obs. used (total)      2673      data-arc span      35495 days (97.18 yr)      first obs. used      1923-09-12      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42485      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 19:36:35   Additional Information  Earth MOID = 1.05704 au   Jupiter MOID = 1.57294 au   T_jup = 3.081  [ hide covariance matrix ] Orbital Elements at Epoch 2456828.5 (2014-Jun-20.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3531290621582421 3.5374e-08   q 2.039737045124801 1.1075e-07 au tp 2456397.196714082688 (2013-Apr-14.69671408) 2.7879e-05 TDB node 294.7959569994296 2.065e-05 deg peri 86.28032763232864 2.1331e-05 deg i 10.92115163460708 4.2276e-06 deg   Orbit Determination Parameters    # obs. used (total)      2673      data-arc span      35495 days (97.18 yr)      first obs. used      1923-09-12      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42485      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 19:36:35   Additional Information  Jupiter MOID = 1.57294 au   T_jup = 3.081  Orbit Covariance (6×6)   e q tp node peri i e 1.25129210642487E-15 -3.911676474422373E-15 -4.275179796502005E-13 -1.619906236100921E-16 -1.219961462187647E-13 -3.543017072243691E-15 q -3.911676474422373E-15 1.226512861695549E-14 1.306854975436959E-12 4.981050932389101E-15 3.712819054267394E-13 1.394937948460459E-14 tp -4.275179796502005E-13 1.306854975436959E-12 7.772123235243519E-10 -1.594907304214747E-12 1.710311335325645E-10 -1.623672198304793E-12 node -1.619906236100921E-16 4.981050932389101E-15 -1.594907304214747E-12 4.264221372666886E-10 -4.180431362570683E-10 3.474424677474611E-11 peri -1.219961462187647E-13 3.712819054267394E-13 1.710311335325645E-10 -4.180431362570683E-10 4.550150411263036E-10 -3.365614150885706E-11 i -3.543017072243691E-15 1.394937948460459E-14 -1.623672198304793E-12 3.474424677474611E-11 -3.365614150885706E-11 1.787300981100682E-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 11.3   n/a MPO250203   diameter diameter 35.310 km 0.345 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 19.497 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Carreno, A.; Arce, E.; Fornas, G.; Mas, V. (2019) Minor Planet Bull. 46, 200-203.] [Polakis, T. (2019) Minor Planet Bull. 46, 78-80.] geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   1006 Lagrangea (A923 RU)          Discovered 1923-Sep-12 by Belyavskij, S. at Simeis Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 03:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin