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JPL Small-Body Database Browser
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243962 (2001 QD246)
Classification: Main-belt Asteroid          SPK-ID: 2243962
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2532819037851036 3.464e-08  
a 2.76403119013193 1.4019e-08 au
q 2.063952108173909 9.6501e-08 au
i 11.75872382546124 4.5387e-06 deg
node 177.8347483500962 2.8929e-05 deg
peri 171.5828575585671 3.2208e-05 deg
M 312.0083809466853 1.3365e-05 deg
tp 2458824.256539509837
(2019-Dec-06.75653951)
6.3143e-05 TDB
period 1678.467111810803
4.60
1.277e-05
3.496e-08
d
yr
n .2144814143016579 1.6318e-09 deg/d
Q 3.464110272089951 1.757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      6643 days (18.19 yr)  
   first obs. used      2001-08-24  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57323  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:17:38  

Additional Information
 Earth MOID = 1.05808 au 
 Jupiter MOID = 1.98436 au 
 T_jup = 3.263 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457078.5 (2015-Feb-25.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2562100438540413 3.4898e-08  
q 2.053643662590528 9.7541e-08 au
tp 2457147.634334977076
(2015-May-05.13433498)
5.6704e-05 TDB
node 177.933266140236 2.8858e-05 deg
peri 171.6033468785003 3.2026e-05 deg
i 11.78084908106941 4.5468e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      6643 days (18.19 yr)  
   first obs. used      2001-08-24  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57323  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:17:38  

Additional Information
 Jupiter MOID = 1.98436 au 
 T_jup = 3.263 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.217839579920545E-15 -3.385582398337434E-15 4.942471867293663E-13 -6.238958347643676E-15 1.411542174015934E-13 -3.544496179056368E-15
q -3.385582398337434E-15 9.514288519699395E-15 -1.210579788535289E-12 2.131488551547184E-14 -3.57121936314478E-13 1.03345257881075E-14
tp 4.942471867293663E-13 -1.210579788535289E-12 3.215311217805857E-9 3.57370563350385E-11 8.356357557078876E-10 -2.434666896699337E-13
node -6.238958347643676E-15 2.131488551547184E-14 3.57370563350385E-11 8.327808684687075E-10 -8.045933871636865E-10 4.255616281024E-11
peri 1.411542174015934E-13 -3.57121936314478E-13 8.356357557078876E-10 -8.045933871636865E-10 1.025638941337115E-9 -4.171034385568205E-11
i -3.544496179056368E-15 1.03345257881075E-14 -2.434666896699337E-13 4.255616281024E-11 -4.171034385568205E-11 2.067363477496006E-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 16.3   n/a MPO440241  
diameter diameter 1.770 km 0.234 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.170   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243962 (2001 QD246)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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