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JPL Small-Body Database Browser
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74979 (1999 TP236)
Classification: Main-belt Asteroid          SPK-ID: 2074979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2108628736661795 4.5736e-08  
a 2.450533962772583 1.2287e-08 au
q 1.933807329365786 1.0871e-07 au
i 6.778619683405992 6.5318e-06 deg
node 159.4048128595216 3.3893e-05 deg
peri 146.0388129678054 3.7151e-05 deg
M 97.80601170954893 1.4929e-05 deg
tp 2458219.826570419425
(2018-Apr-11.32657042)
5.6822e-05 TDB
period 1401.165759176205
3.84
1.0538e-05
2.885e-08
d
yr
n .2569289162558873 1.9324e-09 deg/d
Q 2.967260596179381 1.4878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      7583 days (20.76 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55591  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:16:49  

Additional Information
 Earth MOID = .922602 au 
 Jupiter MOID = 2.31176 au 
 T_jup = 3.456 
[ 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 15.4   n/a MPO449472  
diameter diameter 2.046 km 0.365 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74979 (1999 TP236)          Discovered 1999-Oct-03 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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