+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101014 (1998 QL54) Classification: Main-belt Asteroid          SPK-ID: 2101014 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1967980092784318 5.2214e-08   a 2.308902257464473 5.5723e-09 au q 1.854514889576988 1.2118e-07 au i 4.201717554750921 5.2642e-06 deg node 208.1187934546113 5.2091e-05 deg peri 128.6775831174148 5.3723e-05 deg M 82.28849828971576 1.0699e-05 deg tp 2458707.583804011426 (2019-Aug-12.08380401) 3.7939e-05 TDB period 1281.465001155155 3.51 4.639e-06 1.27e-08 d yr n .2809284683354474 1.017e-09 deg/d Q 2.763289625351959 6.6689e-09 au   Orbit Determination Parameters    # obs. used (total)      655      data-arc span      10632 days (29.11 yr)      first obs. used      1991-10-08      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53377      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:28:42   Additional Information  Earth MOID = .848915 au   Jupiter MOID = 2.63348 au   T_jup = 3.556  [ hide covariance matrix ] Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1976576504285422 5.2362e-08   q 1.851882693777395 1.2163e-07 au tp 2457426.901939981960 (2016-Feb-08.40193998) 3.7407e-05 TDB node 208.1396244857162 5.2067e-05 deg peri 128.8217104627299 5.3681e-05 deg i 4.202811324319447 5.2681e-06 deg   Orbit Determination Parameters    # obs. used (total)      655      data-arc span      10632 days (29.11 yr)      first obs. used      1991-10-08      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53377      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:28:42   Additional Information  Jupiter MOID = 2.63348 au   T_jup = 3.556  Orbit Covariance (6×6)   e q tp node peri i e 2.741823341374104E-15 -6.364462049917275E-15 1.021094700259511E-12 -2.56666872090059E-14 3.785299932118643E-13 -3.618302984480894E-15 q -6.364462049917275E-15 1.47932936416479E-14 -2.362309421531836E-12 5.920490274555324E-14 -8.795249392679768E-13 8.484703876663214E-15 tp 1.021094700259511E-12 -2.362309421531836E-12 1.399273957995921E-9 -1.685162468352343E-11 4.978878344938165E-10 -1.623934257469549E-12 node -2.56666872090059E-14 5.920490274555324E-14 -1.685162468352343E-11 2.710950412859551E-9 -2.708677239762557E-9 -1.032421979559598E-10 peri 3.785299932118643E-13 -8.795249392679768E-13 4.978878344938165E-10 -2.708677239762557E-9 2.881610282803083E-9 1.024666528771665E-10 i -3.618302984480894E-15 8.484703876663214E-15 -1.623934257469549E-12 -1.032421979559598E-10 1.024666528771665E-10 2.775330032759353E-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 16.2   n/a MPO432537   101014 (1998 QL54)          Discovered 1998-Aug-27 by LONEOS at Anderson Mesa Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 03:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin