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192724 (1999 TF157)
Classification: Main-belt Asteroid          SPK-ID: 2192724
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07538560265453087 4.0978e-08  
a 2.690581287631176 1.6484e-08 au
q 2.487750195772096 1.1598e-07 au
i 6.657465986878534 6.2462e-06 deg
node 200.8055816429724 3.662e-05 deg
peri 116.2913190139829 5.7349e-05 deg
M 333.5246941067954 4.5125e-05 deg
tp 2459319.051236723340
(2021-Apr-14.55123672)
0.00020223 TDB
period 1612.009522857171
4.41
1.4814e-05
4.056e-08
d
yr
n .2233237427542772 2.0523e-09 deg/d
Q 2.893412379490256 1.7727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      9039 days (24.75 yr)  
   first obs. used      1995-10-19  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54501  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:17:19  

Additional Information
 Earth MOID = 1.48178 au 
 Jupiter MOID = 2.31444 au 
 T_jup = 3.358 
[ 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 15.84   n/a E2021B55  
diameter diameter 3.771 km 1.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.437 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.054   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192724 (1999 TF157)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1999 TF157 = 1995 UF63 = 1998 MW22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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