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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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305460948311424 4.6457e-08  
a 3.103706368309199 2.0069e-08 au
q 2.698529622423885 1.5027e-07 au
i 16.05920043402497 5.4835e-06 deg
node 214.2536401024746 1.4647e-05 deg
peri 191.7219821883953 2.5006e-05 deg
M 12.72948118069458 1.8522e-05 deg
tp 2459325.880023219849
(2021-Apr-21.38002322)
0.00010274 TDB
period 1997.189930993485
5.47
1.9371e-05
5.303e-08
d
yr
n .1802532620525085 1.7483e-09 deg/d
Q 3.508883114194512 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-Aug-25 18:41:48  

Additional Information
 Earth MOID = 1.70847 au 
 Jupiter MOID = 1.91742 au 
 T_jup = 3.148 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457690.5 (2016-Oct-29.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1327566195306967 4.7413e-08  
q 2.690300321075207 1.5377e-07 au
tp 2457311.148596246584
(2015-Oct-15.64859625)
9.8349e-05 TDB
node 214.4532435703157 1.4582e-05 deg
peri 188.9428926401321 2.4456e-05 deg
i 16.10666675824674 5.5037e-06 deg
  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-Aug-25 18:41:48  

Additional Information
 Jupiter MOID = 1.91742 au 
 T_jup = 3.148 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.247949997111668E-15 -7.249537967613746E-15 -1.106424802609176E-12 -1.10578662404413E-14 -1.536816843910147E-13 -2.952178498291097E-15
q -7.249537967613746E-15 2.36450688765147E-14 3.302649071817562E-12 3.535786758750954E-14 4.540585415375886E-13 1.087259658501898E-14
tp -1.106424802609176E-12 3.302649071817562E-12 9.67259921401207E-9 4.799933421120311E-12 1.943545292698947E-9 1.060976133980639E-11
node -1.10578662404413E-14 3.535786758750954E-14 4.799933421120311E-12 2.126236824421541E-10 -2.028740395648915E-10 -2.693887154824383E-11
peri -1.536816843910147E-13 4.540585415375886E-13 1.943545292698947E-9 -2.028740395648915E-10 5.981083273450712E-10 2.78971435489877E-11
i -2.952178498291097E-15 1.087259658501898E-14 1.060976133980639E-11 -2.693887154824383E-11 2.78971435489877E-11 3.029072349737594E-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 14.80   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 1.99451960570109 1.99451879656501 1.99452041484024 4.16661498416195 4.06341365466839 2432558.349827260 1.97180696952029 169.170394804678 27.2768884765755 -78.9073986790257 3008878.8241498 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:41:50 2021-Aug-25 18:41
1958-Mar-20 09:49 00:02 Jupiter 1.9957581769759 1.99575734033001 1.99575901362576 4.57172029385673 4.47792403420451 2436282.908989516 1.52799624733347 176.353605688224 21.6895704102225 78.47367601066 3248908.67780021 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:41:50 2021-Aug-25 18:41
2018-Oct-23 02:20 < 00:01 Jupiter 1.9349046700433 1.93490418111015 1.93490515897656 4.34551605069199 4.24358234864257 2458414.597510919 0.327198031674155 90.6621122235396 22.2376465967155 -86.9208461664031 3809760.97554433 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:41:50 2021-Aug-25 18:41
2089-Aug-11 16:37 00:02 Jupiter 1.90793086947888 1.90793039411418 1.90793134484575 4.4755939936155 4.37527658074943 2484275.192087043 2.02037053050457 240.756442381343 20.2965224078458 -87.4890190317296 3380489.12120716 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:41:50 2021-Aug-25 18:41
2160-Jun-04 06:01 00:04 Jupiter 1.91847420870565 1.91847360254701 1.91847481488818 4.56769920850418 4.46999543905503 2510138.750538382 3.87147470000196 476.096528767211 19.7012998210133 87.4854680545426 3347897.03210157 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 18:41:50 2021-Aug-25 18:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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