+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   173374 (2000 AS227) Classification: Inner Main-belt Asteroid          SPK-ID: 2173374 [ 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 .08247912804076876 6.8033e-08   a 1.919515877314829 7.0031e-09 au q 1.761195881493491 1.3026e-07 au i 17.35753486301494 4.2051e-06 deg node 318.53147554646 1.462e-05 deg peri 36.737277410646 2.886e-05 deg M 15.32025680060093 2.3412e-05 deg tp 2458959.161993016599 (2020-Apr-19.66199302) 6.3176e-05 TDB period 971.3729154618708 2.66 5.3159e-06 1.455e-08 d yr n .3706094685878969 2.0282e-09 deg/d Q 2.077835873136168 7.5807e-09 au   Orbit Determination Parameters    # obs. used (total)      858      data-arc span      7613 days (20.84 yr)      first obs. used      2000-01-10      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49883      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 05:07:49   Additional Information  Earth MOID = .767389 au   Jupiter MOID = 3.2468 au   T_jup = 3.866  [ hide covariance matrix ] Orbital Elements at Epoch 2457507.5 (2016-Apr-29.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08258405885851168 6.7995e-08   q 1.761427335241658 1.3018e-07 au tp 2457987.884491116440 (2017-Aug-22.38449112) 6.3471e-05 TDB node 318.568917049487 1.4621e-05 deg peri 36.76105390582772 2.8846e-05 deg i 17.3556630558639 4.2048e-06 deg   Orbit Determination Parameters    # obs. used (total)      858      data-arc span      7613 days (20.84 yr)      first obs. used      2000-01-10      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49883      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 05:07:49   Additional Information  Jupiter MOID = 3.2468 au   T_jup = 3.866  Orbit Covariance (6×6)   e q tp node peri i e 4.623372710767743E-15 -8.840813431725567E-15 -6.530205718727705E-14 6.084775999627751E-14 -3.633499749513588E-13 -2.657271919725428E-14 q -8.840813431725567E-15 1.694656683006587E-14 8.069140400683394E-14 -1.169989297823359E-13 6.708521162847483E-13 5.101362046473419E-14 tp -6.530205718727705E-14 8.069140400683394E-14 4.028516509232335E-9 -1.272717457394859E-11 1.560737210915712E-9 -1.805077043823527E-11 node 6.084775999627751E-14 -1.169989297823359E-13 -1.272717457394859E-11 2.137683066388793E-10 -2.115217359282754E-10 1.051748177513617E-11 peri -3.633499749513588E-13 6.708521162847483E-13 1.560737210915712E-9 -2.115217359282754E-10 8.32076499435381E-10 -1.519146576170315E-11 i -2.657271919725428E-14 5.101362046473419E-14 -1.805077043823527E-11 1.051748177513617E-11 -1.519146576170315E-11 1.768066782992808E-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 MPO379576   173374 (2000 AS227)          Discovered 2000-Jan-10 by Spacewatch at Kitt Peak Reference: 20080122/Numbers.arc Last Updated: 2008-01-28 Alternate Designations  2000 AS227 = 2001 QA193  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-19 03:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin