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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07502573103233966 3.1861e-08  
a 2.311056804681978 1.0709e-08 au
q 2.137668078453449 7.793e-08 au
i 2.642793260954269 5.2004e-06 deg
node 158.4592075803382 8.9631e-05 deg
peri 137.5016494590296 9.9998e-05 deg
M 234.3486750783422 4.5253e-05 deg
tp 2459648.397799711933
(2022-Mar-09.89779971)
0.00016198 TDB
period 1283.259114035042
3.51
8.9196e-06
2.442e-08
d
yr
n .2805357048024593 1.9499e-09 deg/d
Q 2.484445530910506 1.1513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      7680 days (21.03 yr)  
   first obs. used      2000-04-05  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:26  

Additional Information
 Earth MOID = 1.1207 au 
 Jupiter MOID = 2.62822 au 
 T_jup = 3.579 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457603.5 (2016-Aug-03.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0757926454072757 3.1822e-08  
q 2.135409348991339 7.7865e-08 au
tp 2457081.617285444063
(2015-Feb-28.11728544)
0.00015755 TDB
node 158.4929386715156 8.9627e-05 deg
peri 137.3672276050047 9.984e-05 deg
i 2.642977988157778 5.2025e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      7680 days (21.03 yr)  
   first obs. used      2000-04-05  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:26  

Additional Information
 Jupiter MOID = 2.62822 au 
 T_jup = 3.579 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.012611435665306E-15 -2.460701196969359E-15 1.580930036534288E-12 4.612701109079811E-15 4.181947161505699E-13 6.397921271391267E-16
q -2.460701196969359E-15 6.062944038150377E-15 -3.475823047961017E-12 -1.223468451262026E-14 -9.054330458914491E-13 -1.510142833461237E-15
tp 1.580930036534288E-12 -3.475823047961017E-12 2.482290673535588E-8 -7.413310907301747E-11 6.947500930766662E-9 -1.32455421229765E-12
node 4.612701109079811E-15 -1.223468451262026E-14 -7.413310907301747E-11 8.033049757309056E-9 -8.044628316924761E-9 2.599323083394407E-10
peri 4.181947161505699E-13 -9.054330458914491E-13 6.947500930766662E-9 -8.044628316924761E-9 9.968089059334161E-9 -2.600261329332079E-10
i 6.397921271391267E-16 -1.510142833461237E-15 -1.32455421229765E-12 2.599323083394407E-10 -2.600261329332079E-10 2.706613516743675E-11

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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