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541128 (2018 RB27)
Classification: Main-belt Asteroid          SPK-ID: 2541128
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0655380343768991 1.4904e-07  
a 2.933860346789548 4.6122e-08 au
q 2.741580906524633 4.3943e-07 au
i 12.42158757851886 1.2951e-05 deg
node 28.41475457656087 5.3307e-05 deg
peri 336.519842802483 7.6717e-05 deg
M 182.8026833033026 5.7526e-05 deg
tp 2460299.966852416805
(2023-Dec-21.46685242)
0.00029742 TDB
period 1835.513499489193
5.03
4.3283e-05
1.185e-07
d
yr
n .1961304017105757 4.6249e-09 deg/d
Q 3.126139787054463 4.9145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      4633 days (12.68 yr)  
   first obs. used      2008-08-30  
   last obs. used      2021-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57641  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:00:34  

Additional Information
 Earth MOID = 1.74497 au 
 Jupiter MOID = 2.20602 au 
 T_jup = 3.237 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457730.5 (2016-Dec-08.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06410094027710142 1.493e-07  
q 2.746900333326487 4.384e-07 au
tp 2458461.605086545714
(2018-Dec-09.10508655)
0.00029417 TDB
node 28.44011262448368 5.329e-05 deg
peri 335.8965491168159 7.7194e-05 deg
i 12.42232446582937 1.2954e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      4633 days (12.68 yr)  
   first obs. used      2008-08-30  
   last obs. used      2021-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57641  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:00:34  

Additional Information
 Jupiter MOID = 2.20602 au 
 T_jup = 3.237 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.229083595326975E-14 -6.513692018096877E-14 -2.588503625502417E-11 3.246913554367046E-14 -5.321619784823437E-12 -1.333807817733079E-14
q -6.513692018096877E-14 1.921918757262292E-13 7.667312435713416E-11 -9.40674125685077E-14 1.560466190526864E-11 4.17785972646404E-14
tp -2.588503625502417E-11 7.667312435713416E-11 8.653348398482733E-8 7.548200559780346E-11 1.665751183808239E-8 -1.794177773253029E-11
node 3.246913554367046E-14 -9.40674125685077E-14 7.548200559780346E-11 2.839871335056324E-9 -2.759819793963233E-9 -5.598275184767857E-10
peri -5.321619784823437E-12 1.560466190526864E-11 1.665751183808239E-8 -2.759819793963233E-9 5.958881766727261E-9 5.436688035954489E-10
i -1.333807817733079E-14 4.17785972646404E-14 -1.794177773253029E-11 -5.598275184767857E-10 5.436688035954489E-10 1.677993234783725E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.67   .37065 MPCxxxxx autocmod 2.6n

541128 (2018 RB27)          Discovered 2008-Aug-30 by OAM at La Sagra
Reference: Last Updated: 2019-05-29

Alternate Designations
 2018 RB27 = 2008 QN28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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