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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1386474985518087 3.402e-08  
a 2.371284980792264 1.0034e-08 au
q 2.042512249851943 8.3853e-08 au
i 7.143066185158575 3.5116e-06 deg
node 125.7742779948415 2.912e-05 deg
peri 233.2551350707047 3.2109e-05 deg
M 247.8871932656687 1.5172e-05 deg
tp 2459415.862014590118
(2021-Jul-20.36201459)		 5.7503e-05 TDB
period 1333.748833947024
3.65		 8.4654e-06
2.318e-08		 d
yr
n .2699158873373749 1.7132e-09 deg/d
Q 2.700057711732585 1.1425e-08 au
   Orbit Determination Parameters
   # obs. used (total)      860  
   data-arc span      7610 days (20.84 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:01  

Additional Information
 Earth MOID = 1.04712 au 
 Jupiter MOID = 2.74187 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457478.5 (2016-Mar-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377969375909747 3.3991e-08  
q 2.045499663928282 8.3687e-08 au
tp 2458082.651855108316
(2017-Nov-25.15185511)		 5.4106e-05 TDB
node 125.7988864530194 2.9115e-05 deg
peri 233.3053415934469 3.2149e-05 deg
i 7.142342335234805 3.5112e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      860  
   data-arc span      7610 days (20.84 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:01  

Additional Information
 Jupiter MOID = 2.74187 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.155382968391646E-15 -2.830820295217291E-15 -2.690666591474519E-13 4.704599890510395E-15 -4.808282694190853E-14 1.044129284229609E-15
q -2.830820295217291E-15 7.003572060419433E-15 8.137577694437687E-13 -1.193110159443582E-14 1.489586573417347E-13 -2.210004987903847E-15
tp -2.690666591474519E-13 8.137577694437687E-13 2.927512398984496E-9 -1.189483635805109E-11 7.483096673687188E-10 2.726469338328759E-12
node 4.704599890510395E-15 -1.193110159443582E-14 -1.189483635805109E-11 8.476981610069021E-10 -8.438286160404882E-10 5.474106576927083E-13
peri -4.808282694190853E-14 1.489586573417347E-13 7.483096673687188E-10 -8.438286160404882E-10 1.033578905860079E-9 1.525857531053309E-13
i 1.044129284229609E-15 -2.210004987903847E-15 2.726469338328759E-12 5.474106576927083E-13 1.525857531053309E-13 1.232865907040624E-11

[ 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 15.8   n/a MPO432302  
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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