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175803 (1999 RB155)
Classification: Main-belt Asteroid          SPK-ID: 2175803
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389464919460322 9.1681e-08  
a 3.16539036505737 3.6549e-08 au
q 2.725570478192878 3.0234e-07 au
i 16.80841459500729 9.0995e-06 deg
node 334.5374342162989 1.8103e-05 deg
peri 353.5197129215475 2.7149e-05 deg
M 290.207360498097 2.1849e-05 deg
tp 2459599.292023908571
(2022-Jan-19.79202391)
0.0001267 TDB
period 2057.023915869683
5.63
3.5627e-05
9.754e-08
d
yr
n .1750101188530891 3.0312e-09 deg/d
Q 3.605210251921861 4.1628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      463  
   data-arc span      7564 days (20.71 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:53  

Additional Information
 Earth MOID = 1.7134 au 
 Jupiter MOID = 1.77259 au 
 T_jup = 3.123 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456803.5 (2014-May-26.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1374226373110741 9.1716e-08  
q 2.731142421581011 3.0193e-07 au
tp 2457543.242530578804
(2016-Jun-03.74253058)
0.00012159 TDB
node 334.563977204491 1.8108e-05 deg
peri 353.9162755153439 2.7247e-05 deg
i 16.80309226187885 9.0966e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      463  
   data-arc span      7564 days (20.71 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:53  

Additional Information
 Jupiter MOID = 1.77259 au 
 T_jup = 3.123 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.411893393363415E-15 -2.75551855593104E-14 4.138212355661662E-12 -1.75169168440892E-14 5.90252020135089E-13 -5.573081734578444E-15
q -2.75551855593104E-14 9.115907615923407E-14 -1.302842521607191E-11 5.875686163090362E-14 -1.908793790099135E-12 2.784229631117391E-14
tp 4.138212355661662E-12 -1.302842521607191E-11 1.478434864408402E-8 -2.912670695868598E-11 2.480392911231259E-9 -1.441219796520201E-11
node -1.75169168440892E-14 5.875686163090362E-14 -2.912670695868598E-11 3.278910662068799E-10 -3.177731769852485E-10 1.465238714638709E-11
peri 5.90252020135089E-13 -1.908793790099135E-12 2.480392911231259E-9 -3.177731769852485E-10 7.424016627531018E-10 -1.681375374607461E-11
i -5.573081734578444E-15 2.784229631117391E-14 -1.441219796520201E-11 1.465238714638709E-11 -1.681375374607461E-11 8.274752569773908E-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 14.5   n/a MPO385773  
diameter diameter 5.523 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.110   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175803 (1999 RB155)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ show close-approach data ]
Alternate Designations
 1999 RB155 = 2002 EY125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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