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190790 (2001 RQ20)
Classification: Main-belt Asteroid          SPK-ID: 2190790
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1609065051241967 3.5846e-08  
a 2.323315628826482 9.6693e-09 au
q 1.949479030691588 8.1456e-08 au
i 1.776057023225793 4.2252e-06 deg
node 318.5508923730052 0.00014396 deg
peri 28.33142020621926 0.00014531 deg
M 155.8438387325809 1.7456e-05 deg
tp 2458640.551759733368
(2019-Jun-06.05175973)
6.2172e-05 TDB
period 1293.483066994322
3.54
8.0749e-06
2.211e-08
d
yr
n .2783182935950874 1.7375e-09 deg/d
Q 2.697152226961377 1.1225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      7150 days (19.58 yr)  
   first obs. used      2001-08-16  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54351  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:09:08  

Additional Information
 Earth MOID = .940884 au 
 Jupiter MOID = 2.70834 au 
 T_jup = 3.558 
[ 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 17.0   n/a MPO533215  

190790 (2001 RQ20)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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