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152769 (1999 RM20)
Classification: Main-belt Asteroid          SPK-ID: 2152769
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .123985034274593 4.1058e-08  
a 3.015166130491662 1.8199e-08 au
q 2.641330654459062 1.2737e-07 au
i 8.614951235273749 5.9473e-06 deg
node 191.6281819697731 2.201e-05 deg
peri 223.6099014509915 3.3307e-05 deg
M 334.947646401077 2.2374e-05 deg
tp 2459333.579551332169
(2021-Apr-29.07955133)
0.00011867 TDB
period 1912.34082220684
5.24
1.7314e-05
4.74e-08
d
yr
n .1882509622863984 1.7044e-09 deg/d
Q 3.389001606524263 2.0456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1049  
   data-arc span      7854 days (21.50 yr)  
   first obs. used      1999-08-12  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47646  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:36  

Additional Information
 Earth MOID = 1.65918 au 
 Jupiter MOID = 2.02479 au 
 T_jup = 3.219 
[ 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 14.65   n/a E2021B55  

152769 (1999 RM20)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 1999 RM20 = 1999 TY128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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