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100957 (1998 QX11)
Classification: Main-belt Asteroid          SPK-ID: 2100957
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2821611787814551 3.3887e-08  
a 2.397074570384705 9.1336e-09 au
q 1.720713183977907 8.3874e-08 au
i 8.15083795832097 3.5691e-06 deg
node 160.1474393293 3.3454e-05 deg
peri 184.7093068026693 3.4301e-05 deg
M 353.242774605184 9.2754e-06 deg
tp 2459225.944073922395
(2021-Jan-11.44407392)
3.4994e-05 TDB
period 1355.566238635396
3.71
7.7477e-06
2.121e-08
d
yr
n .2655716775318926 1.5179e-09 deg/d
Q 3.073435956791504 1.1711e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:32  

Additional Information
 Earth MOID = .711562 au 
 Jupiter MOID = 2.34953 au 
 T_jup = 3.460 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457605.5 (2016-Aug-05.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .281855314666251 3.3909e-08  
q 1.721229957751697 8.3862e-08 au
tp 2457871.455034561588
(2017-Apr-27.95503456)
3.2342e-05 TDB
node 160.1784524118273 3.347e-05 deg
peri 184.8816599558024 3.4323e-05 deg
i 8.148703886509841 3.5682e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:32  

Additional Information
 Jupiter MOID = 2.34953 au 
 T_jup = 3.460 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.149794370460777E-15 -2.836307933504239E-15 3.597769219342252E-14 9.680948173322214E-15 5.202541846576735E-14 -5.205860735769942E-16
q -2.836307933504239E-15 7.03286102085882E-15 -3.385959183664161E-14 -2.247519842260029E-14 -1.180217843265948E-13 1.945641033735008E-15
tp 3.597769219342252E-14 -3.385959183664161E-14 1.045988479377508E-9 1.786429209120862E-11 2.70371271451274E-10 5.301847448595856E-12
node 9.680948173322214E-15 -2.247519842260029E-14 1.786429209120862E-11 1.120228381930538E-9 -1.103767626346055E-9 1.502699310161032E-12
peri 5.202541846576735E-14 -1.180217843265948E-13 2.70371271451274E-10 -1.103767626346055E-9 1.178034809246443E-9 -2.090669167241574E-13
i -5.205860735769942E-16 1.945641033735008E-15 5.301847448595856E-12 1.502699310161032E-12 -2.090669167241574E-13 1.273220400083566E-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 16.24   n/a E2021B55  

100957 (1998 QX11)          Discovered 1998-Aug-17 by LINEAR at Socorro
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
1941-Aug-16 06:10 < 00:01 Juno 0.0482467872089157 0.0482401911051399 0.0482533833291448 6.433347269709 6.43334723051311 2430222.757147419 0.344527134304281 331.892526452208 55.0353024230702 -7.92546827997681 28111.4598630824 T 26 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:34 2021-Apr-13 15:34
2190-Apr-13 10:38 < 00:01 Juno 0.0496153788964994 0.0496045365325601 0.0496262250227569 5.87883063278502 5.87883059107516 2521043.943326092 0.493531519595428 872.015968347411 53.5468442595726 -51.8359524482277 109060.299119658 T 26 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:34 2021-Apr-13 15:34

Alternate Designations
 1998 QX11 = 2002 TA81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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