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181087 (2005 QW47)
Classification: Main-belt Asteroid          SPK-ID: 2181087
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .156977674947972 5.6234e-08  
a 3.083707824237847 2.7616e-08 au
q 2.599634539770121 1.7868e-07 au
i 8.810364761223921 5.275e-06 deg
node 139.3015869630087 4.0863e-05 deg
peri 240.5788699883 4.437e-05 deg
M 275.5204989473317 2.0662e-05 deg
tp 2459664.648659337534
(2022-Mar-26.14865934)
0.00011714 TDB
period 1977.917900548899
5.42
2.657e-05
7.274e-08
d
yr
n .182009576787841 2.445e-09 deg/d
Q 3.567781108705574 3.1951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      7150 days (19.58 yr)  
   first obs. used      2000-11-26  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63072  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:10  

Additional Information
 Earth MOID = 1.61383 au 
 Jupiter MOID = 1.9522 au 
 T_jup = 3.190 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457462.5 (2016-Mar-15.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1579266176493072 5.6124e-08  
q 2.59486112195521 1.7771e-07 au
tp 2457693.447870870965
(2016-Oct-31.94787087)
0.00010302 TDB
node 139.3424804572921 4.0905e-05 deg
peri 241.3099556914339 4.4383e-05 deg
i 8.808000933036622 5.2739e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      7150 days (19.58 yr)  
   first obs. used      2000-11-26  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63072  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:10  

Additional Information
 Jupiter MOID = 1.9522 au 
 T_jup = 3.190 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.149943579458087E-15 -9.887740381245699E-15 2.233405786343433E-13 1.318337322268783E-14 3.001212706983529E-14 3.34224735344139E-15
q -9.887740381245699E-15 3.15809653019744E-14 2.798957957450813E-13 -3.918970557841527E-14 5.590731436752278E-14 -9.048690458373575E-15
tp 2.233405786343433E-13 2.798957957450813E-13 1.061334300543257E-8 -1.718710017556552E-11 1.841626253189922E-9 4.135187104338308E-12
node 1.318337322268783E-14 -3.918970557841527E-14 -1.718710017556552E-11 1.673186765875332E-9 -1.655976747949486E-9 1.938360086270326E-11
peri 3.001212706983529E-14 5.590731436752278E-14 1.841626253189922E-9 -1.655976747949486E-9 1.969828615654284E-9 -1.844258441411451E-11
i 3.34224735344139E-15 -9.048690458373575E-15 4.135187104338308E-12 1.938360086270326E-11 -1.844258441411451E-11 2.78136001679781E-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 15.54   n/a E2021B55  
diameter diameter 4.626 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.033   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181087 (2005 QW47)          Discovered 2005-Aug-26 by NEAT at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2005 QW47 = 2002 CH264 = 2003 GJ31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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