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109517 (2001 QR238)
Classification: Main-belt Asteroid          SPK-ID: 2109517
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1392960917331759 3.9534e-08  
a 3.094907263139426 2.1873e-08 au
q 2.663798777107484 1.2414e-07 au
i 10.27452832440313 4.9914e-06 deg
node 350.8137782379148 2.2707e-05 deg
peri 307.1516025643087 2.7956e-05 deg
M 206.9971602532244 1.671e-05 deg
tp 2459845.714381090468
(2022-Sep-23.21438109)
9.4499e-05 TDB
period 1988.702809020778
5.44
2.1083e-05
5.772e-08
d
yr
n .1810225230069752 1.9191e-09 deg/d
Q 3.526015749171367 2.492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      6812 days (18.65 yr)  
   first obs. used      2001-08-24  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56453  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:05:28  

Additional Information
 Earth MOID = 1.66404 au 
 Jupiter MOID = 1.82813 au 
 T_jup = 3.184 
[ 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 14.4   n/a MPO341325  
diameter diameter 5.189 km 0.767 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.137   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109517 (2001 QR238)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1954-Jun-17 16:47 00:02 Jupiter 1.81276428468965 1.81276374715472 1.81276482222447 1.92495112005278 1.66461032761399 2434911.199557041 2.18153167206453 75.2178495646117 54.4542891030026 -39.8518204742008 1500353.69235357 T 25 CATAB v2.0f-lin.ifort 2020-May-20 19:05:45 2020-May-20 19:05
1964-Feb-29 16:28 00:02 Jupiter 1.98399778830086 1.98399718582607 1.98399839077643 4.14587741963012 4.04158945022874 2438455.185829814 1.58248654632746 96.0609174392307 18.2302480508977 -80.6083721662833 2685835.0951421 T 25 CATAB v2.0f-lin.ifort 2020-May-20 19:05:45 2020-May-20 19:05
2014-Sep-07 19:26 < 00:01 Jupiter 1.83316477635183 1.83316430853478 1.83316524416898 2.80833033692304 2.63867575798788 2456908.309742722 0.248922978673645 85.6055086663822 15.804366677449 -81.8255079777552 2456247.95567035 T 25 CATAB v2.0f-lin.ifort 2020-May-20 19:05:45 2020-May-20 19:05
2024-May-14 06:52 < 00:01 Jupiter 1.89696080788589 1.89696027103295 1.89696134473904 2.63142662217829 2.4558857769894 2460444.786268243 0.421343252744945 51.8531998312636 8.15977990030951 -69.0003971734838 2317301.57662596 T 25 CATAB v2.0f-lin.ifort 2020-May-20 19:05:45 2020-May-20 19:05
2074-Nov-01 02:38 00:02 Jupiter 1.94930977867555 1.94930898211031 1.94931057524123 3.53537858201005 3.41025703842405 2478877.609787440 1.79187797788024 116.480956926789 28.3833589093074 -81.0462594146375 2034029.32894282 T 25 CATAB v2.0f-lin.ifort 2020-May-20 19:05:45 2020-May-20 19:05
2084-Aug-28 17:00 00:03 Jupiter 1.83130287283616 1.83130224447331 1.83130350119901 1.88695660124749 1.62343960107008 2482466.208674995 2.53086550470667 73.0045913311536 50.1179378595004 76.3153012573323 2381774.17868539 T 25 CATAB v2.0f-lin.ifort 2020-May-20 19:05:45 2020-May-20 19:05
2144-Nov-28 12:18 00:04 Jupiter 1.80725147942454 1.80725097092105 1.80725198792802 2.62223101825207 2.43695211937437 2504472.012434040 4.24541570638894 185.483450738325 14.8672972324152 -78.5070360976234 1926352.13754097 T 25 CATAB v2.0f-lin.ifort 2020-May-20 19:05:45 2020-May-20 19:05
2154-Aug-03 18:45 00:05 Jupiter 1.95156863217588 1.95156749905428 1.95156976529926 3.13064037889156 2.98879012594011 2508007.281441091 4.7192459244544 125.716525142672 18.8651845820862 -86.8736614509848 1391017.24736153 T 25 CATAB v2.0f-lin.ifort 2020-May-20 19:05:45 2020-May-20 19:05
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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