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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2530694093037986 3.4636e-08  
a 2.76307828290817 1.3739e-08 au
q 2.063827693992445 9.6517e-08 au
i 11.75970160102311 4.5385e-06 deg
node 177.8208246137267 2.8928e-05 deg
peri 171.669108408821 3.2217e-05 deg
M 37.77512075485711 1.3699e-05 deg
tp 2458824.468020963206
(2019-Dec-06.96802096)
6.3191e-05 TDB
period 1677.599202514724
4.59
1.2513e-05
3.426e-08
d
yr
n .2145923766894735 1.6006e-09 deg/d
Q 3.462328871823895 1.7216e-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 = 1.05887 au 
 Jupiter MOID = 1.98972 au 
 T_jup = 3.264 
[ 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 = 1.98972 au 
 T_jup = 3.264 
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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