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91171 (1998 QG110)
Classification: Main-belt Asteroid          SPK-ID: 2091171
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1250956926202563 7.1875e-08  
a 3.186670658036815 3.796e-08 au
q 2.788031884917051 2.3775e-07 au
i 12.9279970715943 7.7343e-06 deg
node 324.4800490420338 2.2153e-05 deg
peri 29.08609452572375 3.0107e-05 deg
M 325.1480275668749 2.2803e-05 deg
tp 2459401.654179330606
(2021-Jul-06.15417933)
0.00013384 TDB
period 2077.802187465023
5.69
3.7127e-05
1.016e-07
d
yr
n .1732599966309643 3.0959e-09 deg/d
Q 3.585309431156578 4.2709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      7987 days (21.87 yr)  
   first obs. used      1998-08-03  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:40:55  

Additional Information
 Earth MOID = 1.78734 au 
 Jupiter MOID = 1.84852 au 
 T_jup = 3.146 
[ 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 14.32   n/a E2021B10  
diameter diameter 8.298 km 1.363 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.059   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91171 (1998 QG110)          Discovered 1998-Aug-23 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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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
1933-Mar-13 18:14 00:04 Jupiter 1.97311183431275 1.97311048559096 1.97311318306124 3.98327905905622 3.87400915405257 2427145.259833378 3.95689344925411 569.724369817139 49.8349623833712 -84.8834799082514 2294935.93887719 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 20:40:57 2020-Nov-12 20:40
1944-Mar-31 17:24 00:03 Jupiter 1.90263028740512 1.90262958107965 1.90263099373298 4.2858153474942 4.18065104246698 2431181.225211204 3.19990353453632 346.94659739353 31.1098520072153 -88.0425619145829 2148991.60105278 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 20:40:57 2020-Nov-12 20:40
1955-Apr-15 06:55 00:03 Jupiter 1.95630508045043 1.95630408603605 1.9563060748747 4.36245994238107 4.26205532801599 2435212.788247234 2.73729038440887 273.483559822155 23.9762548891524 -81.2958994961265 2402515.9516697 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 20:40:57 2020-Nov-12 20:40
2075-Jul-12 04:28 00:03 Jupiter 1.98228302189088 1.98228191106563 1.98228413273361 3.94936664237468 3.83964893682797 2479130.685863732 3.17226252666727 515.549542797578 42.7518186113161 -85.6968624723333 2216356.36095511 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 20:40:57 2020-Nov-12 20:40
2086-Jul-29 04:14 00:04 Jupiter 1.91856081743707 1.91856011126622 1.91856152360901 4.32420742207256 4.22087583940418 2483165.676368683 3.74099242353798 329.135890931286 32.6741545821074 -88.5112553099513 2201688.23338836 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 20:40:57 2020-Nov-12 20:40
2097-Aug-10 14:19 00:05 Jupiter 1.97475984288986 1.97475862809106 1.97476105771583 4.47647719505395 4.37961179157387 2487196.096431821 4.59242438730079 412.285912944272 22.3118957975858 -82.2705993709163 2591316.8163713 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 20:40:57 2020-Nov-12 20:40

Alternate Designations
 1998 QG110 = 2001 DH72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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