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243596 (1998 ST79)
Classification: Main-belt Asteroid          SPK-ID: 2243596
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415536856409219 4.9521e-08  
a 2.794786677439127 2.0223e-08 au
q 2.399174322667472 1.4318e-07 au
i 20.62300437437175 6.623e-06 deg
node 2.615377661869016 1.1137e-05 deg
peri 306.8080398290988 3.2424e-05 deg
M 309.620698889436 3.4481e-05 deg
tp 2459439.320201830795
(2021-Aug-12.82020183)
0.00016387 TDB
period 1706.55945524933
4.67
1.8523e-05
5.071e-08
d
yr
n .2109507517553227 2.2897e-09 deg/d
Q 3.190399032210781 2.3086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      404  
   data-arc span      7916 days (21.67 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60336  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:44:15  

Additional Information
 Earth MOID = 1.43686 au 
 Jupiter MOID = 2.3458 au 
 T_jup = 3.220 
[ 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 15.49   n/a E2021B55  

243596 (1998 ST79)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Alternate Designations
 1998 ST79 = 1998 RR57 = 2003 TH9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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