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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116855048899566 3.6232e-08  
a 3.154490598238492 1.8806e-08 au
q 2.802179723103605 1.1514e-07 au
i 6.614670492871874 3.9598e-06 deg
node 295.4321822723726 3.5739e-05 deg
peri 238.2121485553553 4.0029e-05 deg
M 297.2627821317587 1.9068e-05 deg
tp 2459357.127671345962
(2021-May-22.62767135)
0.00010954 TDB
period 2046.408273222739
5.60
1.83e-05
5.01e-08
d
yr
n .1759179752694521 1.5732e-09 deg/d
Q 3.506801473373379 2.0907e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      8460 days (23.16 yr)  
   first obs. used      1996-11-05  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47633  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:47:57  

Additional Information
 Earth MOID = 1.81502 au 
 Jupiter MOID = 1.54356 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456688.5 (2014-Jan-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1136903628221345 3.6046e-08  
q 2.792552232587823 1.146e-07 au
tp 2457317.776987808698
(2015-Oct-22.27698781)
0.00010265 TDB
node 295.525774785391 3.5676e-05 deg
peri 239.3893844540099 3.9849e-05 deg
i 6.624361811849185 3.9641e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      8460 days (23.16 yr)  
   first obs. used      1996-11-05  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47633  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:47:57  

Additional Information
 Jupiter MOID = 1.54356 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.299321458784306E-15 -4.087967135961519E-15 -2.154949204511366E-14 -2.588321504017069E-15 1.727315907145674E-14 -2.503186683037949E-16
q -4.087967135961519E-15 1.313401382001382E-14 4.056850463895473E-13 8.488525712379311E-15 -1.145150125004885E-14 1.020072561072167E-15
tp -2.154949204511366E-14 4.056850463895473E-13 1.053654728086274E-8 3.885415957179766E-12 1.844857096984509E-9 -3.402303829381872E-14
node -2.588321504017069E-15 8.488525712379311E-15 3.885415957179766E-12 1.272805128277483E-9 -1.263250501050228E-9 2.949798275980248E-12
peri 1.727315907145674E-14 -1.145150125004885E-14 1.844857096984509E-9 -1.263250501050228E-9 1.587943815069535E-9 -2.956764388519335E-12
i -2.503186683037949E-16 1.020072561072167E-15 -3.402303829381872E-14 2.949798275980248E-12 -2.956764388519335E-12 1.57139758101882E-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 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

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