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JPL Small-Body Database Browser
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74295 (1998 SR147)
Classification: Main-belt Asteroid          SPK-ID: 2074295
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379407255877984 3.8097e-08  
a 2.766356667030569 1.8061e-08 au
q 2.384763421145728 1.0917e-07 au
i 9.469663510941205 6.0613e-06 deg
node 192.0539166153794 2.4564e-05 deg
peri 101.379348537655 3.3417e-05 deg
M 245.8126049261173 2.3682e-05 deg
tp 2459133.560314687452
(2020-Oct-11.06031469)
0.00011254 TDB
period 1680.585787628455
4.60
1.6459e-05
4.506e-08
d
yr
n .2142110225197199 2.0979e-09 deg/d
Q 3.147949912915409 2.0553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      737  
   data-arc span      7521 days (20.59 yr)  
   first obs. used      1998-09-18  
   last obs. used      2019-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56524  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:00:52  

Additional Information
 Earth MOID = 1.39089 au 
 Jupiter MOID = 2.10205 au 
 T_jup = 3.306 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456598.5 (2013-Nov-02.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1356253952733719 3.7933e-08  
q 2.395208932394087 1.0859e-07 au
tp 2455766.500558314842
(2011-Jul-24.00055831)
0.00010643 TDB
node 192.1763964180012 2.4591e-05 deg
peri 100.7857409775082 3.3755e-05 deg
i 9.457628297703305 6.0553e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      737  
   data-arc span      7521 days (20.59 yr)  
   first obs. used      1998-09-18  
   last obs. used      2019-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56524  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:00:52  

Additional Information
 Jupiter MOID = 2.10205 au 
 T_jup = 3.306 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.438917250326507E-15 -4.077157975860701E-15 3.372854271343645E-13 8.87282113919406E-16 1.057509869662177E-13 5.633185071195439E-16
q -4.077157975860701E-15 1.179214346412339E-14 -7.540668850585549E-13 -4.169801341357963E-15 -2.355048031317669E-13 -2.168725584970407E-15
tp 3.372854271343645E-13 -7.540668850585549E-13 1.132752965781696E-8 -1.536436416752851E-11 2.468774061828022E-9 1.440031668678583E-12
node 8.87282113919406E-16 -4.169801341357963E-15 -1.536436416752851E-11 6.047110576145102E-10 -5.994776320557735E-10 8.921628582153724E-13
peri 1.057509869662177E-13 -2.355048031317669E-13 2.468774061828022E-9 -5.994776320557735E-10 1.139408845262777E-9 -5.435160624911632E-13
i 5.633185071195439E-16 -2.168725584970407E-15 1.440031668678583E-12 8.921628582153724E-13 -5.435160624911632E-13 3.666621678271538E-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 14.9   n/a MPO468690  

74295 (1998 SR147)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SR147 = 2001 FT43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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