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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 
[ 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 15.1   n/a MPO417185  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2003-Jul-14 02:55 < 00:01 Iris 0.0491041739415449 0.0491023677495761 0.049105980135016 3.09801070181658 3.09801066402703 2452834.621456116 0.494603285819263 128.024766402294 88.992215423348 81.6818028373293 82022.8944107213 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 10:39:04 2020-Feb-23 10:39
2094-Oct-16 07:51 00:02 Hygie 0.0409632338654637 0.0409517176732771 0.0409747511864984 4.91316946710778 4.913169275132 2486166.827083962 1.66405169763605 669.312780359498 105.857444615669 31.4416304146617 31152.2582324905 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 10:39:04 2020-Feb-23 10:39

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