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74872 (1999 TC98)
Classification: Main-belt Asteroid          SPK-ID: 2074872
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1382755577135987 3.3534e-08  
a 2.371888270131141 1.0175e-08 au
q 2.043914096744415 8.2634e-08 au
i 7.143317673898903 3.5114e-06 deg
node 125.770315817011 2.8647e-05 deg
peri 232.9870312821522 3.1674e-05 deg
M 354.9602672043752 1.5497e-05 deg
tp 2459415.178619622983
(2021-Jul-19.67861962)
5.7499e-05 TDB
period 1334.25785393054
3.65
8.5855e-06
2.351e-08
d
yr
n .2698129143025011 1.7362e-09 deg/d
Q 2.699862443517868 1.1582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      7610 days (20.84 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5537  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:16:05  

Additional Information
 Earth MOID = 1.04755 au 
 Jupiter MOID = 2.74115 au 
 T_jup = 3.521 
[ 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 15.88   n/a E2021B10  
diameter diameter 1.591 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.402   0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74872 (1999 TC98)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TC98 = 2002 LU11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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