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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2822986076381173 3.397e-08  
a 2.397039255293532 9.0101e-09 au
q 1.720358411070258 8.4075e-08 au
i 8.149459060238271 3.5688e-06 deg
node 160.1603156228744 3.4068e-05 deg
peri 184.7451402778278 3.4929e-05 deg
M 300.1051957928702 9.2245e-06 deg
tp 2459226.026611727578
(2021-Jan-11.52661173)
3.529e-05 TDB
period 1355.536282265089
3.71
7.6429e-06
2.093e-08
d
yr
n .2655775464736682 1.4974e-09 deg/d
Q 3.073720099516805 1.1554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57686  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:17  

Additional Information
 Earth MOID = .713032 au 
 Jupiter MOID = 2.34874 au 
 T_jup = 3.460 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457587.5 (2016-Jul-18.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2818472313295469 3.4005e-08  
q 1.721258684934767 8.4097e-08 au
tp 2457871.454808837512
(2017-Apr-27.95480884)
3.269e-05 TDB
node 160.1786173598013 3.4072e-05 deg
peri 184.879930496552 3.4937e-05 deg
i 8.148708269021325 3.5684e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57686  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:17  

Additional Information
 Jupiter MOID = 2.34874 au 
 T_jup = 3.460 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.156342713900825E-15 -2.852395476610651E-15 4.811375518022242E-14 9.557138189892895E-15 5.667260378712372E-14 -4.832408610402189E-16
q -2.852395476610651E-15 7.072383527510915E-15 -6.387417510062399E-14 -2.211213824517848E-14 -1.295773596345218E-13 1.853048868553925E-15
tp 4.811375518022242E-14 -6.387417510062399E-14 1.068655741847326E-9 1.873052148064417E-11 2.779607457696244E-10 5.377561384330086E-12
node 9.557138189892895E-15 -2.211213824517848E-14 1.873052148064417E-11 1.160891366366522E-9 -1.143788973989466E-9 1.715345577530221E-12
peri 5.667260378712372E-14 -1.295773596345218E-13 2.779607457696244E-10 -1.143788973989466E-9 1.220573042882859E-9 -3.918234114481332E-13
i -4.832408610402189E-16 1.853048868553925E-15 5.377561384330086E-12 1.715345577530221E-12 -3.918234114481332E-13 1.273355085365407E-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 16.1   n/a MPO469017  

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 25 CATAB v2.0f-lin.ifort 2020-Nov-12 20:03:18 2020-Nov-12 20:03
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 25 CATAB v2.0f-lin.ifort 2020-Nov-12 20:03:18 2020-Nov-12 20:03

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