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JPL Small-Body Database Browser
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59166 (1998 YZ18)
Classification: Main-belt Asteroid          SPK-ID: 2059166
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685560184979227 5.0198e-08  
a 2.646349965099983 1.4583e-08 au
q 2.200291751430613 1.3866e-07 au
i 2.904871786108712 5.5848e-06 deg
node 193.7893760959027 8.4504e-05 deg
peri 209.0191704466277 8.6018e-05 deg
M 12.42769763276947 1.5277e-05 deg
tp 2458946.217790179504
(2020-Apr-06.71779018)
6.6574e-05 TDB
period 1572.422834286778
4.31
1.2998e-05
3.559e-08
d
yr
n .2289460520097887 1.8925e-09 deg/d
Q 3.092408178769352 1.7041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      427  
   data-arc span      9679 days (26.50 yr)  
   first obs. used      1993-07-24  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55662  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:43:47  

Additional Information
 Earth MOID = 1.20945 au 
 Jupiter MOID = 2.30887 au 
 T_jup = 3.370 
[ 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 16.3   n/a MPO449380  

59166 (1998 YZ18)          Discovered 1998-Dec-25 by Spacewatch at Kitt Peak
Reference: 20030614/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
2068-Jun-06 09:58 00:02 Hebe 0.0373949303613711 0.037390500277644 0.0373993653681625 4.38924778768509 4.38924774980991 2476538.915245333 1.68539440735624 722.625214486996 40.7082465091251 72.4842314290106 131000.318923812 T 16 CATAB v2.0f-lin.ifort 2020-Feb-23 12:44:03 2020-Feb-23 12:44

Alternate Designations
 1998 YZ18 = 2002 SF50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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