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JPL Small-Body Database Browser
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74977 (1999 TC233)
Classification: Main-belt Asteroid          SPK-ID: 2074977
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07359386159507658 4.0849e-08  
a 2.442647884034824 1.2164e-08 au
q 2.262883993731659 9.9969e-08 au
i 14.88660307838572 4.1871e-06 deg
node 113.4851057883795 1.8291e-05 deg
peri 295.884291006967 3.8244e-05 deg
M 36.19470194653733 3.2153e-05 deg
tp 2458460.305095061477
(2018-Dec-07.80509506)
0.00012464 TDB
period 1394.407553139047
3.82
1.0416e-05
2.852e-08
d
yr
n .2581741609112624 1.9285e-09 deg/d
Q 2.62241177433799 1.3059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      984  
   data-arc span      7108 days (19.46 yr)  
   first obs. used      1999-09-14  
   last obs. used      2019-03-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51163  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:24:16  

Additional Information
 Earth MOID = 1.31428 au 
 Jupiter MOID = 2.62908 au 
 T_jup = 3.451 
[ 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 14.9   n/a MPO453162  
diameter diameter 2.641 km 0.955 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74977 (1999 TC233)          Discovered 1999-Oct-07 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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