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243492 (2009 UB26)
Classification: Main-belt Asteroid          SPK-ID: 2243492
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03441195432989844 6.7561e-08  
a 2.789568242351352 3.4042e-08 au
q 2.693573747395423 1.8142e-07 au
i 6.027559202984443 5.5847e-06 deg
node 60.17794787624445 6.4998e-05 deg
peri 272.9924154608011 0.0001079 deg
M 160.1173888794521 8.8608e-05 deg
tp 2458243.597550658058
(2018-May-05.09755066)		 0.00041745 TDB
period 1701.781946795581
4.66		 3.1151e-05
8.529e-08		 d
yr
n .2115429657000842 3.8723e-09 deg/d
Q 2.885562737307282 3.5213e-08 au
   Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      9813 days (26.87 yr)  
   first obs. used      1993-03-23  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:21:41  

Additional Information
 Earth MOID = 1.69155 au 
 Jupiter MOID = 2.23122 au 
 T_jup = 3.321 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457084.5 (2015-Mar-03.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03453235045430375 6.6719e-08  
q 2.692409180251274 1.787e-07 au
tp 2456521.882240551464
(2013-Aug-17.38224055)		 0.00042267 TDB
node 60.30598378454797 6.5065e-05 deg
peri 268.7302797758724 0.00010918 deg
i 6.025419732859259 5.5796e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      9813 days (26.87 yr)  
   first obs. used      1993-03-23  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:21:41  

Additional Information
 Jupiter MOID = 2.23122 au 
 T_jup = 3.321 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.451398571642448E-15 -1.173987041268359E-14 9.084626069660693E-12 -1.038503102320494E-14 1.895960351929489E-12 2.392271949793944E-15
q -1.173987041268359E-14 3.193229132428613E-14 -2.465366175274869E-11 2.762984740094949E-14 -5.082907396976205E-12 -5.060369360078197E-15
tp 9.084626069660693E-12 -2.465366175274869E-11 1.786475941857773E-7 1.579671174569647E-11 3.711899592738348E-8 -1.575343495544673E-12
node -1.038503102320494E-14 2.762984740094949E-14 1.579671174569647E-11 4.233474972168691E-9 -4.206490194337692E-9 -7.884741966267458E-11
peri 1.895960351929489E-12 -5.082907396976205E-12 3.711899592738348E-8 -4.206490194337692E-9 1.192093433619141E-8 7.814970674706581E-11
i 2.392271949793944E-15 -5.060369360078197E-15 -1.575343495544673E-12 -7.884741966267458E-11 7.814970674706581E-11 3.113238307788083E-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 16.0   n/a MPO454787  
diameter diameter 3.158 km 1.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243492 (2009 UB26)          Discovered 2009-Oct-21 by CSS at Catalina
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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Alternate Designations
 2009 UB26 = 2007 EW107 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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