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173740 (2001 QX287)
Classification: Main-belt Asteroid          SPK-ID: 2173740
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1197730887672325 5.222e-08  
a 2.983483410578629 2.3591e-08 au
q 2.626142387207829 1.629e-07 au
i 10.89185443431867 5.8789e-06 deg
node 329.9892810343059 2.1946e-05 deg
peri 345.599312834515 2.9295e-05 deg
M 291.874820166894 2.2425e-05 deg
tp 2459556.695992355707
(2021-Dec-08.19599236)
0.00011966 TDB
period 1882.278440397447
5.15
2.2326e-05
6.113e-08
d
yr
n .1912575696951537 2.2685e-09 deg/d
Q 3.340824433949428 2.6417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      606  
   data-arc span      6874 days (18.82 yr)  
   first obs. used      2001-07-22  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57609  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:18:00  

Additional Information
 Earth MOID = 1.61246 au 
 Jupiter MOID = 1.9806 au 
 T_jup = 3.221 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457217.5 (2015-Jul-14.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182815825282988 5.2227e-08  
q 2.631520236341768 1.6269e-07 au
tp 2457673.102261529237
(2016-Oct-11.60226153)
0.00010935 TDB
node 330.0132619877253 2.195e-05 deg
peri 345.5654900034556 2.9449e-05 deg
i 10.88909471477989 5.8773e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      606  
   data-arc span      6874 days (18.82 yr)  
   first obs. used      2001-07-22  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57609  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:18:00  

Additional Information
 Jupiter MOID = 1.9806 au 
 T_jup = 3.221 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.727683800068044E-15 -8.432355000229064E-15 1.400409454667248E-13 -5.358073598691499E-15 7.250511600896234E-14 2.065084380256632E-15
q -8.432355000229064E-15 2.646944877596201E-14 5.824590856577954E-13 1.83935179954164E-14 -6.643236923551735E-14 -5.192828682955761E-15
tp 1.400409454667248E-13 5.824590856577954E-13 1.195779412267744E-8 -1.517068424929855E-11 2.158231941526493E-9 -3.629850167499731E-12
node -5.358073598691499E-15 1.83935179954164E-14 -1.517068424929855E-11 4.817950295464042E-10 -4.75353194405338E-10 3.792308710929604E-12
peri 7.250511600896234E-14 -6.643236923551735E-14 2.158231941526493E-9 -4.75353194405338E-10 8.672336895270829E-10 -4.398795828898378E-12
i 2.065084380256632E-15 -5.192828682955761E-15 -3.629850167499731E-12 3.792308710929604E-12 -4.398795828898378E-12 3.454298646337095E-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 14.93   n/a E2021B55  
diameter diameter 3.828 km 0.954 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.159   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173740 (2001 QX287)          Discovered 2001-Aug-17 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ 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
1931-Apr-14 18:32 00:03 Jupiter 1.96921155413975 1.96921104880273 1.96921205947834 3.47820238860514 3.35225688444328 2426446.272323001 2.98699494585615 187.408454261651 16.6362191888972 -84.0911966613671 2823155.54300953 T 19 CATAB v2.0f-lin.ifort 2020-Nov-12 10:18:02 2020-Nov-12 10:18
2050-Jan-07 20:55 00:01 Jupiter 1.96474558245259 1.96474512536968 1.96474603953551 3.58400592164031 3.46162929554775 2469814.371614279 1.23575347232833 108.892327797819 17.5487360093485 -85.4548874956612 2898473.1745756 T 19 CATAB v2.0f-lin.ifort 2020-Nov-12 10:18:02 2020-Nov-12 10:18
2168-Oct-03 15:20 00:05 Jupiter 1.96313124467466 1.96313078536288 1.96313170398689 3.67536212985277 3.55603103058418 2513182.139072403 5.32916511268656 335.798998989619 18.7504923349357 -89.0396188763252 2986469.26433182 T 19 CATAB v2.0f-lin.ifort 2020-Nov-12 10:18:02 2020-Nov-12 10:18
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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