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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2110415373375548 4.383e-08  
a 2.450405606568721 1.2308e-08 au
q 1.933268240257894 1.0376e-07 au
i 6.779688142160845 5.5569e-06 deg
node 159.3918012649897 3.0773e-05 deg
peri 146.0989741335346 3.3222e-05 deg
M 200.5031857642178 1.3749e-05 deg
tp 2459621.233101315476
(2022-Feb-10.73310132)
5.6376e-05 TDB
period 1401.05567339563
3.84
1.0556e-05
2.89e-08
d
yr
n .2569491040477328 1.936e-09 deg/d
Q 2.967542972879547 1.4906e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      8034 days (22.00 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54088  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:35  

Additional Information
 Earth MOID = .92286 au 
 Jupiter MOID = 2.31392 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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