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JPL Small-Body Database Browser
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91678 (1999 TB117)
Classification: Main-belt Asteroid          SPK-ID: 2091678
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08591966508402091 7.3686e-08  
a 3.194914818154859 4.1756e-08 au
q 2.920408807007018 2.4176e-07 au
i 12.64203737466221 9.1302e-06 deg
node 3.885142372813741 2.9739e-05 deg
peri 301.9336455068928 6.3492e-05 deg
M 278.6227706416644 6.1808e-05 deg
tp 2459472.006572526445
(2021-Sep-14.50657253)
0.00036091 TDB
period 2085.870549390156
5.71
4.0892e-05
1.12e-07
d
yr
n .1725898091352087 3.3835e-09 deg/d
Q 3.4694208293027 4.5344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      7156 days (19.59 yr)  
   first obs. used      1999-10-04  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:04:26  

Additional Information
 Earth MOID = 1.9308 au 
 Jupiter MOID = 1.87891 au 
 T_jup = 3.152 
[ 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 14.3   n/a MPO302520  
diameter diameter 8.326 km 0.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91678 (1999 TB117)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TB117 = 2002 CM167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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