+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101320 (1998 SY153) Classification: Main-belt Asteroid          SPK-ID: 2101320 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2136323447963845 4.0653e-08   a 2.320481328292487 1.2812e-08 au q 1.824751461073134 9.7804e-08 au i 7.550625734771956 5.3544e-06 deg node 48.77269327809041 3.8634e-05 deg peri 72.1664503307672 4.1185e-05 deg M 314.318868895502 1.6486e-05 deg tp 2459164.332437342943 (2020-Nov-10.83243734) 5.9967e-05 TDB period 1291.116835713642 3.53 1.0693e-05 2.928e-08 d yr n .278828367845592 2.3092e-09 deg/d Q 2.81621119551184 1.5549e-08 au   Orbit Determination Parameters    # obs. used (total)      516      data-arc span      8090 days (22.15 yr)      first obs. used      1998-09-21      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53079      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:29:04   Additional Information  Earth MOID = .857287 au   Jupiter MOID = 2.31047 au   T_jup = 3.536  [ hide covariance matrix ] Orbital Elements at Epoch 2457262.5 (2015-Aug-28.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2125941209823936 4.0687e-08   q 1.827773660989047 9.7839e-08 au tp 2457872.994774421874 (2017-Apr-29.49477442) 5.4319e-05 TDB node 48.79402735292818 3.8619e-05 deg peri 72.1725685061468 4.1202e-05 deg i 7.551424794832814 5.3558e-06 deg   Orbit Determination Parameters    # obs. used (total)      516      data-arc span      8090 days (22.15 yr)      first obs. used      1998-09-21      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53079      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:29:04   Additional Information  Jupiter MOID = 2.31047 au   T_jup = 3.536  Orbit Covariance (6×6)   e q tp node peri i e 1.655424598114498E-15 -3.961236548372646E-15 8.273884042610893E-14 -1.290578307465463E-14 9.86782908494951E-14 2.641963397414508E-15 q -3.961236548372646E-15 9.572476619608223E-15 7.882573653222532E-14 2.958815878047871E-14 -1.799335066153812E-13 -5.727130547308651E-15 tp 8.273884042610893E-14 7.882573653222532E-14 2.950555401393796E-9 -2.31167102729349E-11 7.925015324552994E-10 2.738811168289347E-12 node -1.290578307465463E-14 2.958815878047871E-14 -2.31167102729349E-11 1.491427953523632E-9 -1.484622530505024E-9 -7.850289968024102E-11 peri 9.86782908494951E-14 -1.799335066153812E-13 7.925015324552994E-10 -1.484622530505024E-9 1.697594882667435E-9 7.853133605274646E-11 i 2.641963397414508E-15 -5.727130547308651E-15 2.738811168289347E-12 -7.850289968024102E-11 7.853133605274646E-11 2.868501175266103E-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 16.1   n/a MPO453466   diameter diameter 1.974 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.180   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101320 (1998 SY153)          Discovered 1998-Sep-26 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1998 SY153 = 2000 HT7  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-19 16:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin