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47424 (1999 XE169)
Classification: Main-belt Asteroid          SPK-ID: 2047424
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06178689645633448 6.0608e-08  
a 2.584003496694978 1.0685e-08 au
q 2.424345940201879 1.6191e-07 au
i 5.412636989051191 3.9962e-06 deg
node 43.36919537019352 3.8809e-05 deg
peri 152.4331141892311 5.3082e-05 deg
M 277.5466468900724 4.0211e-05 deg
tp 2459547.991265997108
(2021-Nov-29.49126600)
0.00017056 TDB
period 1517.183365389378
4.15
9.4107e-06
2.577e-08
d
yr
n .2372818000859162 1.4718e-09 deg/d
Q 2.743661053188076 1.1345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1687  
   data-arc span      11075 days (30.32 yr)  
   first obs. used      1990-09-26  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50335  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:51:06  

Additional Information
 Earth MOID = 1.42257 au 
 Jupiter MOID = 2.21164 au 
 T_jup = 3.414 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457130.5 (2015-Apr-18.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06149208423965331 6.0494e-08  
q 2.424995978028045 1.6152e-07 au
tp 2456518.837630545904
(2013-Aug-14.33763055)
0.00016527 TDB
node 43.38480358596036 3.8798e-05 deg
peri 153.5366118345754 5.3605e-05 deg
i 5.41418459985224 3.9968e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1687  
   data-arc span      11075 days (30.32 yr)  
   first obs. used      1990-09-26  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50335  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:51:06  

Additional Information
 Jupiter MOID = 2.21164 au 
 T_jup = 3.414 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.65954362524406E-15 -9.756673447510778E-15 -5.769075351245465E-12 1.9182567287228E-14 -1.203717690429616E-12 -3.78123566022651E-15
q -9.756673447510778E-15 2.608710376874492E-14 1.560475278588906E-11 -5.216158792165016E-14 3.266688371230661E-12 1.0269346572549E-14
tp -5.769075351245465E-12 1.560475278588906E-11 2.731379829027647E-8 -4.832529462117612E-11 6.118968466459296E-9 1.4141033036618E-11
node 1.9182567287228E-14 -5.216158792165016E-14 -4.832529462117612E-11 1.505321318681195E-9 -1.508970291119465E-9 -2.630368712720889E-11
peri -1.203717690429616E-12 3.266688371230661E-12 6.118968466459296E-9 -1.508970291119465E-9 2.873443193262182E-9 2.930666121885007E-11
i -3.78123566022651E-15 1.0269346572549E-14 1.4141033036618E-11 -2.630368712720889E-11 2.930666121885007E-11 1.597458247831457E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.44   n/a E2021B10  
diameter diameter 3.714 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.267   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47424 (1999 XE169)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XE169 = 1998 RT33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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