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243945 (2001 QU39)
Classification: Main-belt Asteroid          SPK-ID: 2243945
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2195754064578351 4.278e-08  
a 2.798653216477216 1.7119e-08 au
q 2.184137798934704 1.1552e-07 au
i 10.79924322286264 4.7535e-06 deg
node 137.4656377132949 2.1924e-05 deg
peri 185.4447165511529 2.5074e-05 deg
M 357.7476460989278 9.8054e-06 deg
tp 2459011.199320280089
(2020-Jun-10.69932028)
4.6583e-05 TDB
period 1710.102173108
4.68
1.569e-05
4.296e-08
d
yr
n .2105137375188076 1.9315e-09 deg/d
Q 3.413168634019728 2.0878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      7032 days (19.25 yr)  
   first obs. used      2001-08-16  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:09:36  

Additional Information
 Earth MOID = 1.1719 au 
 Jupiter MOID = 1.92881 au 
 T_jup = 3.265 
[ 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 16.3   n/a MPO437138  
diameter diameter 3.210 km 0.932 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243945 (2001 QU39)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ 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
1919-Feb-24 04:37 00:03 Jupiter 1.99844904640268 1.99844825499132 1.99844983781416 2.64232059298531 2.47672732536947 2422013.692459236 2.49295290240815 92.5415630730286 39.7679446971481 83.2693095187257 2972104.43870222 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:09:37 2020-Dec-18 00:09
2050-Nov-19 09:51 < 00:01 Jupiter 1.93830664890783 1.93830629837757 1.93830699943832 2.78926875621235 2.62793421546632 2470129.910351115 0.971846928096892 104.572467010399 15.1716918178586 -84.8220915698218 2581578.81564002 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:09:37 2020-Dec-18 00:09
2074-Feb-08 19:37 00:02 Jupiter 1.92440230240644 1.92440186243034 1.9244027423833 2.76247295984198 2.59826098294518 2478612.317600139 1.64175370211792 128.244225461836 19.8226133461632 86.9766851380398 2807119.16003062 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:09:37 2020-Dec-18 00:09
2097-Apr-26 15:52 00:02 Jupiter 1.97513516763996 1.97513415782265 1.97513617745761 2.75021974556119 2.5895990092061 2487090.161308693 2.42916306867269 98.065860607654 41.1174407971378 76.7410165835796 2829733.86803663 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:09:37 2020-Dec-18 00:09

Alternate Designations
 2001 QU39 = 2006 QA111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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