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JPL Small-Body Database Browser
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91790 (1999 TF222)
Classification: Main-belt Asteroid          SPK-ID: 2091790
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06066092369765778 4.0626e-08  
a 3.125145848905149 2.1457e-08 au
q 2.935571615020661 1.2339e-07 au
i 8.360653427974398 5.0762e-06 deg
node 225.3440800546435 2.6101e-05 deg
peri 213.3911642612841 4.6993e-05 deg
M 204.5880617416138 3.9417e-05 deg
tp 2459871.635553052966
(2022-Oct-19.13555305)
0.00022304 TDB
period 2017.919618103375
5.52
2.0782e-05
5.69e-08
d
yr
n .1784015561226175 1.8373e-09 deg/d
Q 3.314720082789636 2.2758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1017  
   data-arc span      8075 days (22.11 yr)  
   first obs. used      1997-04-30  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:37:06  

Additional Information
 Earth MOID = 1.95462 au 
 Jupiter MOID = 1.94316 au 
 T_jup = 3.196 
[ 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 14.1   n/a MPO348077  
diameter diameter 5.972 km 0.289 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 0.92 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.136   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91790 (1999 TF222)          Discovered 1999-Oct-02 by LONEOS at Anderson Mesa
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
1938-Aug-12 11:34 00:02 Jupiter 1.95835956552006 1.95835907698515 1.95836005405497 3.06449405324554 2.91994710879549 2429122.981641511 2.44273129538589 125.823073052918 18.1979577125246 -86.3441972925207 3401976.74309813 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 22:37:21 2020-Feb-23 22:37
1948-Sep-28 21:24 00:02 Jupiter 1.98007155873067 1.98007115165789 1.98007196580345 3.43017201368441 3.30310954477903 2432823.391508234 1.98824694128457 78.1205605100671 16.2060869398171 -87.1219800386305 2995771.54427024 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 22:37:21 2020-Feb-23 22:37
2010-Jul-22 10:33 < 00:01 Jupiter 1.95351938374016 1.95351891079254 1.95351985668779 3.62484075996959 3.50318349262456 2455399.939831916 0.239310042966078 40.6960231496973 18.7995838309609 -82.5953636283679 3056879.61459639 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 22:37:21 2020-Feb-23 22:37
2020-Aug-30 08:58 < 00:01 Jupiter 1.9567665471442 1.95676608783299 1.95676700645553 3.01405434058239 2.86684262807528 2459091.873930728 0.331571247226489 61.7182818725415 16.1878409268987 -80.2606074466824 3821707.76821306 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 22:37:21 2020-Feb-23 22:37
2082-Jun-18 21:50 00:02 Jupiter 1.97312496194277 1.97312444884065 1.97312547504557 4.31983297180301 4.21928874099232 2481664.409920948 2.07292786831665 141.613280258989 20.3121043090991 86.9913607138246 3189183.36027418 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 22:37:21 2020-Feb-23 22:37
2092-Aug-12 07:59 00:03 Jupiter 1.94698179538338 1.94698130405285 1.94698228671445 2.93549087075108 2.78334670692901 2485371.832532764 2.5950239296226 123.705238980713 16.0108387737232 -82.7297103802826 3722613.29227757 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 22:37:21 2020-Feb-23 22:37
2164-Jul-25 22:08 00:05 Jupiter 1.94032478590922 1.94032432181766 1.94032525000123 3.42800441168422 3.29820274148376 2511651.421901433 4.79885723820342 262.570981709299 17.5289545986437 -85.1473433554463 2899819.96186454 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 22:37:21 2020-Feb-23 22:37
2174-Sep-02 06:35 00:05 Jupiter 1.97151779376015 1.97151714024897 1.97151844727165 3.07161092999188 2.92840133672038 2515341.774608877 5.09803665517437 74.9040925669103 15.6609676110913 -81.3365996894626 1786031.9764154 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 22:37:21 2020-Feb-23 22:37

Alternate Designations
 1999 TF222 = 1997 HQ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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