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186972 (2004 RB177)
Classification: Main-belt Asteroid          SPK-ID: 2186972
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06830087166768566 7.1262e-08  
a 3.096531825896825 3.1937e-08 au
q 2.885036003041342 2.4109e-07 au
i 8.40555743950938 4.0202e-06 deg
node 244.0666900857751 4.0224e-05 deg
peri 95.13654651385933 5.8073e-05 deg
M 5.082689546467498 3.7657e-05 deg
tp 2459172.400225696390
(2020-Nov-18.90022570)
0.00020832 TDB
period 1990.26886391873
5.45
3.0791e-05
8.43e-08
d
yr
n .1808800843576379 2.7983e-09 deg/d
Q 3.308027648752308 3.4118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      7708 days (21.10 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-11-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53928  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:28  

Additional Information
 Earth MOID = 1.89073 au 
 Jupiter MOID = 1.9738 au 
 T_jup = 3.203 
[ show covariance matrix ]

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 15.01   n/a E2021B55  

186972 (2004 RB177)          Discovered 2004-Sep-10 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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