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JPL Small-Body Database Browser
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52952 (1998 SU154)
Classification: Main-belt Asteroid          SPK-ID: 2052952
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2139354269661585 4.6872e-08  
a 2.562059990405218 1.1367e-08 au
q 2.013944592444966 1.2277e-07 au
i 4.752028891585601 5.0146e-06 deg
node 273.0730752353241 6.2169e-05 deg
peri 177.7901923015915 6.4506e-05 deg
M 50.110229278784 1.4273e-05 deg
tp 2458791.999904754882
(2019-Nov-04.49990476)
5.9775e-05 TDB
period 1497.898440469158
4.10
9.9688e-06
2.729e-08
d
yr
n .2403367212848182 1.5995e-09 deg/d
Q 3.11017538836547 1.3799e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1121  
   data-arc span      12120 days (33.18 yr)  
   first obs. used      1986-11-29  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:38:54  

Additional Information
 Earth MOID = 1.03056 au 
 Jupiter MOID = 2.0989 au 
 T_jup = 3.397 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457165.5 (2015-May-23.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2125740074053011 4.7366e-08  
q 2.017732672840117 1.2408e-07 au
tp 2457294.861978442470
(2015-Sep-29.36197844)
6.4022e-05 TDB
node 273.1790261270596 6.219e-05 deg
peri 177.954127072134 6.4559e-05 deg
i 4.749236717852241 5.0173e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1121  
   data-arc span      12120 days (33.18 yr)  
   first obs. used      1986-11-29  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:38:54  

Additional Information
 Jupiter MOID = 2.0989 au 
 T_jup = 3.397 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.243498754930817E-15 -5.862702132293469E-15 2.128382628885444E-12 -3.24592989666432E-15 5.446902483468779E-13 -5.273011909729323E-15
q -5.862702132293469E-15 1.539571245779052E-14 -5.708190556426271E-12 7.906814367065883E-15 -1.46624987712144E-12 1.40551726539157E-14
tp 2.128382628885444E-12 -5.708190556426271E-12 4.098794179286707E-9 -7.218287980715804E-12 1.141360713888379E-9 -8.198544978307935E-12
node -3.24592989666432E-15 7.906814367065883E-15 -7.218287980715804E-12 3.867569501691485E-9 -3.855902496940069E-9 2.049776478860348E-10
peri 5.446902483468779E-13 -1.46624987712144E-12 1.141360713888379E-9 -3.855902496940069E-9 4.167845290257424E-9 -2.065141973219339E-10
i -5.273011909729323E-15 1.40551726539157E-14 -8.198544978307935E-12 2.049776478860348E-10 -2.065141973219339E-10 2.517283730447664E-11

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 15.1   n/a MPO417185  

52952 (1998 SU154)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SU154 = 1986 WP7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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