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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07502572342096811 3.7632e-08  
a 2.3110568025875 1.1995e-08 au
q 2.137668094106423 8.8189e-08 au
i 2.642792190141159 5.3391e-06 deg
node 158.4592366169694 9.5182e-05 deg
peri 137.5016171917868 0.00010526 deg
M 234.3486798528124 4.7294e-05 deg
tp 2459648.397782083930
(2022-Mar-09.89778208)
0.00016969 TDB
period 1283.259112290543
3.51
9.9904e-06
2.735e-08
d
yr
n .2805357051838276 2.184e-09 deg/d
Q 2.484445511068576 1.2895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      7649 days (20.94 yr)  
   first obs. used      2000-04-05  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57043  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:09:23  

Additional Information
 Earth MOID = 1.1207 au 
 Jupiter MOID = 2.62822 au 
 T_jup = 3.579 
[ 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 16.9   n/a MPO418026  

190851 (2001 SR172)          Discovered 2001-Sep-16 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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