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117261 (2004 SS57)
Classification: Main-belt Asteroid          SPK-ID: 2117261
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305460948235799 4.6457e-08  
a 3.103706368296585 2.0069e-08 au
q 2.69852962243639 1.5027e-07 au
i 16.05920043407455 5.4835e-06 deg
node 214.2536401025012 1.4647e-05 deg
peri 191.7219821855554 2.5006e-05 deg
M 12.72948118358683 1.8522e-05 deg
tp 2459325.880023204234
(2021-Apr-21.38002320)
0.00010274 TDB
period 1997.18993098131
5.47
1.9371e-05
5.303e-08
d
yr
n .1802532620536074 1.7483e-09 deg/d
Q 3.50888311415678 2.2689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      914  
   data-arc span      9987 days (27.34 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48548  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:39:37  

Additional Information
 Earth MOID = 1.70847 au 
 Jupiter MOID = 1.91742 au 
 T_jup = 3.148 
[ 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 14.80   n/a E2021B55  

117261 (2004 SS57)          Discovered 2004-Sep-16 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1948-Jan-07 20:24 00:02 Jupiter 1.99451960642823 1.99451879729214 1.99452041556738 4.16661497101502 4.06341364122566 2432558.349830211 1.97180697149227 169.170393622118 27.2768885213765 -78.9073985714154 3008878.81273065 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 00:39:40 2021-Jul-09 00:39
1958-Mar-20 09:49 00:02 Jupiter 1.99575817661478 1.99575733996889 1.99575901326464 4.57172029019121 4.47792403044506 2436282.908987205 1.5279962450893 176.353607126336 21.6895698954354 78.4736760177092 3248908.68135277 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 00:39:40 2021-Jul-09 00:39
2018-Oct-23 02:20 < 00:01 Jupiter 1.93490467004675 1.93490418111359 1.93490515898001 4.34551603652093 4.24358233413129 2458414.597513580 0.327198031551206 90.6621123498078 22.2376465326557 -86.9208459874753 3809761.00235916 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 00:39:40 2021-Jul-09 00:39
2089-Aug-11 16:37 00:02 Jupiter 1.9079308696085 1.9079303942438 1.90793134497537 4.47559397677298 4.37527656352763 2484275.192090875 2.02037053310909 240.756442360249 20.2965223071029 -87.4890189767203 3380489.1142756 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 00:39:40 2021-Jul-09 00:39
2160-Jun-04 06:01 00:04 Jupiter 1.91847420942966 1.91847360327101 1.91847481561219 4.56769918924902 4.46999541941627 2510138.750543064 3.87147470605191 476.096526061587 19.7013003936514 87.485468087167 3347897.00022023 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 00:39:40 2021-Jul-09 00:39
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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