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102391 (1999 TH157)
Classification: Main-belt Asteroid          SPK-ID: 2102391
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156288335961314 4.5885e-08  
a 2.590766042217287 1.3155e-08 au
q 2.032122182413508 1.2438e-07 au
i 12.97121823361099 5.939e-06 deg
node 1.804387911492499 1.957e-05 deg
peri 114.9212071174978 2.4729e-05 deg
M 302.8152037455545 1.7186e-05 deg
tp 2459442.446195952342
(2021-Aug-15.94619595)		 7.3872e-05 TDB
period 1523.143147267435
4.17		 1.1601e-05
3.176e-08		 d
yr
n .236353359594501 1.8002e-09 deg/d
Q 3.149409902021066 1.5992e-08 au
   Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      7800 days (21.36 yr)  
   first obs. used      1999-09-04  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53129  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:31:19  

Additional Information
 Earth MOID = 1.08466 au 
 Jupiter MOID = 2.03068 au 
 T_jup = 3.351 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO351575  
diameter diameter 6.483 km 0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102391 (1999 TH157)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 TH157 = 2001 BZ69 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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