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190851 (2001 SR172)
Classification: Main-belt Asteroid          SPK-ID: 2190851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07506510557238183 3.1872e-08  
a 2.310661631769349 1.0698e-08 au
q 2.137211572438531 7.7943e-08 au
i 2.642984399749955 5.1979e-06 deg
node 158.4612506301079 8.9608e-05 deg
peri 137.6298634731299 9.9963e-05 deg
M 289.2101869157183 4.5294e-05 deg
tp 2459648.773261049389
(2022-Mar-10.27326105)
0.0001618 TDB
period 1282.929986969345
3.51
8.91e-06
2.439e-08
d
yr
n .2806076743520704 1.9488e-09 deg/d
Q 2.484111691100168 1.1501e-08 au
  Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      2000-04-05  
   last obs. used      2021-05-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56471  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:52:13  

Additional Information
 Earth MOID = 1.12179 au 
 Jupiter MOID = 2.62776 au 
 T_jup = 3.579 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.96   n/a MPCxxxxx  

190851 (2001 SR172)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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