+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70001 (1998 XB7) Classification: Main-belt Asteroid          SPK-ID: 2070001 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05856828384874038 4.3458e-08   a 3.149765238779151 2.5628e-08 au q 2.965288894217438 1.3739e-07 au i 9.931995227380458 4.9662e-06 deg node 230.575262346762 2.5737e-05 deg peri 4.871984176155305 5.1368e-05 deg M 126.978879235421 4.7238e-05 deg tp 2458280.313967564553 (2018-Jun-10.81396756) 0.00026484 TDB period 2041.811781911189 5.59 2.4919e-05 6.822e-08 d yr n .1763139987678152 2.1518e-09 deg/d Q 3.334241583340864 2.7129e-08 au   Orbit Determination Parameters    # obs. used (total)      671      data-arc span      8441 days (23.11 yr)      first obs. used      1997-10-07      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57935      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:54:04   Additional Information  Earth MOID = 1.95403 au   Jupiter MOID = 1.66516 au   T_jup = 3.182  [ show covariance matrix ] [ 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 14.6   n/a MPO432253   diameter diameter 6.262 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.071   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70001 (1998 XB7)          Discovered 1998-Dec-08 by Spacewatch at Kitt Peak Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 XB7 = 2002 OF11  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-19 06:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin