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15371 Steward (1996 RZ18)
Classification: Main-belt Asteroid          SPK-ID: 2015371
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089497998501829 3.7344e-08  
a 2.994888584173018 1.6367e-08 au
q 2.66859607235377 1.1495e-07 au
i 2.738762226335623 5.3978e-06 deg
node 171.1603876619606 7.4351e-05 deg
peri 126.4860041712305 7.8557e-05 deg
M 290.9798477600475 2.7732e-05 deg
tp 2459563.446693780828
(2021-Dec-14.94669378)
0.00014706 TDB
period 1893.082027794551
5.18
1.5518e-05
4.249e-08
d
yr
n .1901660861570809 1.5589e-09 deg/d
Q 3.321181095992265 1.815e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1095  
   data-arc span      10725 days (29.36 yr)  
   first obs. used      1991-10-07  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:56:39  

Additional Information
 Earth MOID = 1.65202 au 
 Jupiter MOID = 1.86445 au 
 T_jup = 3.244 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456792.5 (2014-May-15.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064555491008305 3.6903e-08  
q 2.682008681971882 1.1336e-07 au
tp 2457663.777991827733
(2016-Oct-02.27799183)
0.00014531 TDB
node 171.2303008458904 7.4571e-05 deg
peri 125.1163087506096 7.8976e-05 deg
i 2.731875589741671 5.3877e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1095  
   data-arc span      10725 days (29.36 yr)  
   first obs. used      1991-10-07  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:56:39  

Additional Information
 Jupiter MOID = 1.86445 au 
 T_jup = 3.244 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.361839005244469E-15 -4.148165558975288E-15 1.24049366731929E-12 -2.13651738048364E-16 2.629857623848208E-13 1.084788464014524E-16
q -4.148165558975288E-15 1.284996847707537E-14 -2.999106605048276E-12 -2.567849359204369E-15 -6.834349477214098E-13 -7.071631036834655E-16
tp 1.24049366731929E-12 -2.999106605048276E-12 2.111489936184326E-8 -4.992432452757052E-12 3.783507084618265E-9 -3.541883988066085E-12
node -2.13651738048364E-16 -2.567849359204369E-15 -4.992432452757052E-12 5.560822272122652E-9 -5.554472660764038E-9 3.204555412146374E-11
peri 2.629857623848208E-13 -6.834349477214098E-13 3.783507084618265E-9 -5.554472660764038E-9 6.237178793553533E-9 -3.258011399750767E-11
i 1.084788464014524E-16 -7.071631036834655E-16 -3.541883988066085E-12 3.204555412146374E-11 -3.258011399750767E-11 2.902725879084995E-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 14.41   n/a E2021B10  

15371 Steward           Discovered 1996 Sept. 15 by Spacewatch at Kitt Peak.
The Steward Observatory, named in memory of Lavinia Steward, is the research organization associated with the department of astronomy of the University of Arizona. Besides operating telescopes at several locations, its faculty, staff and students are leaders in instrumental development and in theoretical studies.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

[ 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
1930-Dec-28 23:13 00:02 Jupiter 1.89014809601075 1.89014752666601 1.89014866535538 2.41570697050843 2.22247390936883 2426339.467325035 2.15295815429474 57.6056830380909 18.9835270486781 -85.3812512352864 3165273.01688523 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 00:56:47 2021-Apr-13 00:56
1976-Nov-24 07:07 < 00:01 Jupiter 1.87103007931541 1.87102961738597 1.87103054124484 2.84137240794235 2.67731011847622 2443106.796610195 0.955792806698252 53.9880184366546 11.2604003404779 -87.6703302424335 2653447.85196237 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 00:56:47 2021-Apr-13 00:56
2013-Nov-14 10:12 < 00:01 Jupiter 1.87722052840867 1.87722019822533 1.87722085859202 2.40064850792867 2.20469755340658 2456610.925302311 0.200483180993787 50.7036630255003 3.72936558456262 83.5177939015366 3597967.63368266 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 00:56:47 2021-Apr-13 00:56
2059-Oct-11 02:11 00:01 Jupiter 1.89235862329457 1.89235819065612 1.89235905593301 2.99630476919957 2.84299829753859 2473377.590804537 1.19834169249391 62.3516416698601 12.8256878766369 -87.9367070328351 3007193.03362815 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 00:56:47 2021-Apr-13 00:56
2096-Sep-30 07:15 00:02 Jupiter 1.86600963386929 1.86600919978856 1.86601006794991 2.40161420754245 2.20451970694403 2486881.802278312 2.13127750146989 50.869409638715 13.7397002742394 83.994619149259 3587006.36046074 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 00:56:47 2021-Apr-13 00:56
2142-Aug-31 00:08 00:03 Jupiter 1.92165141115345 1.9216506361521 1.92165218615741 3.17832631271475 3.03647843236227 2503651.505360933 3.27576255433156 148.533978190892 14.9750682149523 -83.1653937182584 2830049.27958956 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 00:56:47 2021-Apr-13 00:56
2179-Aug-18 07:25 00:04 Jupiter 1.85715654321096 1.85715607625593 1.85715701016608 2.41917253047915 2.22266154991957 2517152.808695772 4.2604065785915 55.1907586507064 20.7776561835693 73.558515106014 3584855.2799707 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 00:56:47 2021-Apr-13 00:56

Alternate Designations
 1996 RZ18 = 2000 JT13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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