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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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2822986014654861 3.8897e-08  
a 2.397039254333233 9.7274e-09 au
q 1.72035842517709 9.4338e-08 au
i 8.149455388571948 4.5507e-06 deg
node 160.1603014241042 3.5959e-05 deg
peri 184.7451541466044 3.6853e-05 deg
M 300.1051966803656 1.0131e-05 deg
tp 2459226.026608250297
(2021-Jan-11.52660825)
3.8868e-05 TDB
period 1355.536281450509
3.71
8.2513e-06
2.259e-08
d
yr
n .2655775466332612 1.6166e-09 deg/d
Q 3.073720083489376 1.2473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      7973 days (21.83 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:14:17  

Additional Information
 Earth MOID = .713032 au 
 Jupiter MOID = 2.34874 au 
 T_jup = 3.460 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457132.5 (2015-Apr-20.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .280776491969101 3.8806e-08  
q 1.725602794838387 9.4015e-08 au
tp 2456514.127520392194
(2013-Aug-09.62752039)
3.3579e-05 TDB
node 160.1755102709232 3.596e-05 deg
peri 184.723561264791 3.687e-05 deg
i 8.144724957608744 4.5475e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      7973 days (21.83 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:14:17  

Additional Information
 Jupiter MOID = 2.34874 au 
 T_jup = 3.460 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.50593196751538E-15 -3.63816563475269E-15 3.246852279295985E-13 1.250481264423948E-14 8.90893545324681E-14 2.114184166613016E-16
q -3.63816563475269E-15 8.838809798482078E-15 -7.519599425509757E-13 -3.139270820507799E-14 -2.008665604399502E-13 -1.08188914018682E-16
tp 3.246852279295985E-13 -7.519599425509757E-13 1.127531121384246E-9 1.180385313158804E-11 3.016608262042856E-10 2.634414785573923E-12
node 1.250481264423948E-14 -3.139270820507799E-14 1.180385313158804E-11 1.293104409093342E-9 -1.276835579230866E-9 3.325061950383158E-11
peri 8.90893545324681E-14 -2.008665604399502E-13 3.016608262042856E-10 -1.276835579230866E-9 1.359415164069647E-9 -3.220973266231129E-11
i 2.114184166613016E-16 -1.08188914018682E-16 2.634414785573923E-12 3.325061950383158E-11 -3.220973266231129E-11 2.067942996197348E-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 24 CATAB v2.0f-lin.ifort 2020-Jun-24 01:14:34 2020-Jun-24 01:14
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 24 CATAB v2.0f-lin.ifort 2020-Jun-24 01:14:34 2020-Jun-24 01:14

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