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91165 (1998 QF84)
Classification: Main-belt Asteroid          SPK-ID: 2091165
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1417289411407556 6.4145e-08  
a 3.13373180742186 2.5844e-08 au
q 2.689591316536854 2.0984e-07 au
i 14.14245442253895 6.4597e-06 deg
node 299.5170334277407 1.9161e-05 deg
peri 1.387433276330948 2.8933e-05 deg
M 72.16813998508141 1.8804e-05 deg
tp 2458990.305370674598
(2020-May-20.80537067)
0.00010813 TDB
period 2026.24131074146
5.55
2.5066e-05
6.863e-08
d
yr
n .1776688680126977 2.1979e-09 deg/d
Q 3.577872298306866 2.9507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      8189 days (22.42 yr)  
   first obs. used      1998-08-19  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49315  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:44:03  

Additional Information
 Earth MOID = 1.67357 au 
 Jupiter MOID = 1.66585 au 
 T_jup = 3.150 
[ 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 14.08   n/a E2021B10  
rotation period rot_per 53.5573 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

91165 (1998 QF84)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
1967-Sep-20 09:17 00:02 Jupiter 1.88529532620467 1.88529417299477 1.88529647941542 4.1112504561954 4.00047790488567 2439753.886653186 1.84006392723259 314.48234883247 56.4001695830792 -87.3630728757901 2443446.35682868 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 14:44:07 2021-Apr-13 14:44
1978-Apr-18 15:33 00:01 Jupiter 1.69408139440149 1.69408080954587 1.69408197926136 4.00055973066872 3.87356420222701 2443617.148078662 1.39571156165107 251.381369787625 20.3980117005034 -85.9760937643916 2474376.12879998 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 14:44:07 2021-Apr-13 14:44
2062-Mar-20 05:01 00:02 Jupiter 1.7632804654011 1.76327935766058 1.76328157314162 4.12803834293422 4.00998325362935 2474268.709286861 1.66811066749093 236.755251189187 54.1957741238062 -89.1666094149353 2311498.31788452 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 14:44:07 2021-Apr-13 14:44
2072-Oct-13 00:32 00:02 Jupiter 1.75698368995588 1.75698250104804 1.75698487888239 3.86296871123916 3.73608742708846 2478128.522403006 2.27666086391538 318.661411554326 17.2280686095847 -79.3682415828185 2557793.78485742 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 14:44:07 2021-Apr-13 14:44
2156-Sep-24 05:56 00:05 Jupiter 1.69770558526112 1.69770440862448 1.69770676195971 4.1336735801983 4.01116110996394 2508789.747292605 5.03904291179141 666.662588006235 35.9060936626765 86.1528665525055 2503144.08234535 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 14:44:07 2021-Apr-13 14:44
2167-Apr-01 21:24 00:06 Jupiter 1.87211433473697 1.87211064987415 1.87211801966513 3.68059633734216 3.55554582097708 2512631.391573251 6.45810254273671 594.45118071341 17.7899672046592 -70.6949013496058 2853518.32194995 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 14:44:07 2021-Apr-13 14:44
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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