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160555 (1998 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2160555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835167986414377 7.102e-08  
a 2.771081313490896 2.3814e-08 au
q 2.262541342063936 2.0061e-07 au
i 9.49892596575671 8.0001e-06 deg
node 353.2499208779897 3.5145e-05 deg
peri 6.169231258849575 3.8695e-05 deg
M 171.823023252341 2.096e-05 deg
tp 2457796.323853419702
(2017-Feb-11.82385342)
9.1553e-05 TDB
period 1684.893021255595
4.61
2.172e-05
5.947e-08
d
yr
n .2136634168807496 2.7543e-09 deg/d
Q 3.279621284917855 2.8185e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      7516 days (20.58 yr)  
   first obs. used      1998-09-12  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60246  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:28:20  

Additional Information
 Earth MOID = 1.25827 au 
 Jupiter MOID = 2.16782 au 
 T_jup = 3.293 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456256.5 (2012-Nov-25.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809526518217885 7.1244e-08  
q 2.272332422057822 2.007e-07 au
tp 2456111.943703039971
(2012-Jul-03.44370304)
8.198e-05 TDB
node 353.4127911571637 3.5188e-05 deg
peri 6.616739786605146 3.8833e-05 deg
i 9.487111352740055 7.9926e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      7516 days (20.58 yr)  
   first obs. used      1998-09-12  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60246  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:28:20  

Additional Information
 Jupiter MOID = 2.16782 au 
 T_jup = 3.293 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.075643900955329E-15 -1.423405732103516E-14 2.174802740892839E-13 4.391559847488048E-15 2.476028590763729E-14 -2.396899292968227E-15
q -1.423405732103516E-14 4.028239584196751E-14 -6.092022214275055E-15 -1.151817321959095E-14 4.939094165005855E-14 8.002227620149906E-15
tp 2.174802740892839E-13 -6.092022214275055E-15 6.720658366915401E-9 1.189139424662085E-12 1.379421402742464E-9 -1.013678021113537E-12
node 4.391559847488048E-15 -1.151817321959095E-14 1.189139424662085E-12 1.238196296203686E-9 -1.220096412671377E-9 4.510076370371464E-11
peri 2.476028590763729E-14 4.939094165005855E-14 1.379421402742464E-9 -1.220096412671377E-9 1.508024475129366E-9 -4.477086484510963E-11
i -2.396899292968227E-15 8.002227620149906E-15 -1.013678021113537E-12 4.510076370371464E-11 -4.477086484510963E-11 6.388241130671037E-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 14.8   n/a MPO433026  

160555 (1998 RB1)          Discovered 1998-Sep-12 by Kobayashi, T. at Oizumi
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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