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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835391334037497 6.4956e-08  
a 2.771608919475852 2.2068e-08 au
q 2.262910220261151 1.8708e-07 au
i 9.498455516042485 6.814e-06 deg
node 353.2449450795161 3.4339e-05 deg
peri 6.060792271576892 3.7956e-05 deg
M 257.4313274690661 2.1394e-05 deg
tp 2459480.684996558886
(2021-Sep-23.18499656)
0.0001042 TDB
period 1685.374242403925
4.61
2.0128e-05
5.511e-08
d
yr
n .2136024100418882 2.5511e-09 deg/d
Q 3.280307618690554 2.6118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      7946 days (21.75 yr)  
   first obs. used      1998-09-12  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:08:18  

Additional Information
 Earth MOID = 1.25949 au 
 Jupiter MOID = 2.1705 au 
 T_jup = 3.293 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456908.5 (2014-Sep-08.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828054234556555 6.4969e-08  
q 2.265283273128999 1.8701e-07 au
tp 2456111.964533598536
(2012-Jul-03.46453360)
8.0959e-05 TDB
node 353.2651863731679 3.4341e-05 deg
peri 6.470824306916746 3.7988e-05 deg
i 9.497338182068484 6.8131e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      7946 days (21.75 yr)  
   first obs. used      1998-09-12  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:08:18  

Additional Information
 Jupiter MOID = 2.1705 au 
 T_jup = 3.293 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.22090979422466E-15 -1.20995649374864E-14 8.819626860138488E-14 -5.129411216021127E-16 5.521613515818258E-14 -1.912440338877716E-15
q -1.20995649374864E-14 3.497321804428754E-14 3.597210034729019E-13 4.707289540550209E-15 -2.376557457018403E-14 7.797700653500685E-15
tp 8.819626860138488E-14 3.597210034729019E-13 6.55428324699325E-9 -6.660263087998621E-13 1.355236281799093E-9 3.257027498312508E-12
node -5.129411216021127E-16 4.707289540550209E-15 -6.660263087998621E-13 1.179292070837638E-9 -1.161656057633158E-9 6.917259690034103E-11
peri 5.521613515818258E-14 -2.376557457018403E-14 1.355236281799093E-9 -1.161656057633158E-9 1.44305169677571E-9 -6.732700600227612E-11
i -1.912440338877716E-15 7.797700653500685E-15 3.257027498312508E-12 6.917259690034103E-11 -6.732700600227612E-11 4.641777010917743E-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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