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JPL Small-Body Database Browser
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39305 (2001 QX180)
Classification: Main-belt Asteroid          SPK-ID: 2039305
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116855038419954 3.5708e-08  
a 3.154490597790976 1.8596e-08 au
q 2.802179726011854 1.139e-07 au
i 6.614670542942577 3.9251e-06 deg
node 295.4321828042559 3.5263e-05 deg
peri 238.2121481261976 3.9607e-05 deg
M 297.2627821694339 1.9067e-05 deg
tp 2459357.127671055908
(2021-May-22.62767106)
0.00010953 TDB
period 2046.408272787264
5.60
1.8095e-05
4.954e-08
d
yr
n .1759179753068874 1.5556e-09 deg/d
Q 3.506801469570098 2.0673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1940  
   data-arc span      8489 days (23.24 yr)  
   first obs. used      1996-11-05  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47308  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:09:36  

Additional Information
 Earth MOID = 1.81502 au 
 Jupiter MOID = 1.54356 au 
 T_jup = 3.187 
[ 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 12.9   n/a MPO365714  
diameter diameter 14.750 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39305 (2001 QX180)          Discovered 2001-Aug-29 by JPL/GEODSS NEAT at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

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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
1940-Sep-23 01:29 00:02 Jupiter 1.71067356122467 1.7106725855982 1.71067453685037 2.14601074208468 1.90133704603324 2429895.562126827 2.37959405883138 80.2153772755045 19.1976299371942 -73.2586913157909 1354159.46444419 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
1951-Mar-22 13:02 00:02 Jupiter 1.57463702219308 1.5746366023273 1.57463744205904 1.93958578518785 1.63895116843739 2433728.042819574 1.91425179903631 312.818627218687 30.85690168513 79.3389443498654 3191129.75419265 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
1961-Oct-20 15:43 00:01 Jupiter 1.74945057651916 1.74944981371044 1.74945133932818 3.07903261336728 2.91755241403243 2437593.154684613 1.43472660086951 93.7918300442425 22.3808370938781 78.7282720447018 1993381.68996738 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
2036-Oct-14 19:58 < 00:01 Jupiter 1.94339920388862 1.94339877254688 1.94339963523025 3.68086825483831 3.56049145069492 2464981.331913739 0.641471490683058 44.62132152165 17.8026066011406 89.7246999051211 3481175.39062159 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
2047-Apr-29 07:20 00:01 Jupiter 1.66349452380446 1.66349405215291 1.66349499545572 1.9124179091579 1.62449284401145 2468829.805320246 1.0674544597229 54.8230547531637 35.1471436000364 -77.4890550079638 1933611.54742202 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
2057-Oct-25 23:11 00:01 Jupiter 1.59486329745753 1.59486283498556 1.59486375993222 2.05671535336447 1.77985668225644 2472662.465779042 1.40987350973477 222.18298640945 24.9907076079151 81.4891969388879 3095720.52307016 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
2068-May-26 02:41 00:02 Jupiter 1.82374044562877 1.82373949440657 1.82374139685148 3.32811538791863 3.18550892273644 2476527.612013167 1.67496773074989 92.7544935897789 26.6108765349654 71.7037718749256 1998829.79921717 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
2143-May-17 15:39 00:04 Jupiter 1.86603867300323 1.86603694860173 1.86604039740919 3.32784101698483 3.18852572414457 2503911.152360411 3.77075354955553 179.864358065328 22.3653010140045 71.5860108364991 2558619.19543792 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
2153-Nov-24 23:53 00:04 Jupiter 1.62350140090021 1.62350051739113 1.6235022844068 1.71743917131084 1.38063238063 2507755.495275821 4.46985329858937 151.329884689357 66.5217515834658 -11.8570761709937 798146.470149592 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
2164-May-24 02:59 00:05 Jupiter 1.62927242774681 1.62927130377795 1.62927355174188 2.23139149814259 1.98478020918726 2511588.623991835 4.62492419327731 399.061622000497 19.7128448916008 83.1175489349889 2373781.79149844 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10
2174-Dec-25 12:31 00:05 Jupiter 1.90839424072306 1.9083916385388 1.9083968429121 3.62580955177393 3.50125892366716 2515456.021551195 4.66445553614278 207.961688723213 30.1620636363365 58.8065143642212 1804164.78069286 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 05:09:52 2020-Feb-23 05:10

Alternate Designations
 2001 QX180 = 1999 GL9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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