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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1386474984865312 3.4043e-08  
a 2.371284980794365 1.0035e-08 au
q 2.042512250008544 8.39e-08 au
i 7.143066097347917 3.5172e-06 deg
node 125.774277588047 2.9134e-05 deg
peri 233.2551354909196 3.2124e-05 deg
M 247.8871932559594 1.5173e-05 deg
tp 2459415.862014626641
(2021-Jul-20.36201463)		 5.7508e-05 TDB
period 1333.748833948796
3.65		 8.4666e-06
2.318e-08		 d
yr
n .2699158873370162 1.7134e-09 deg/d
Q 2.700057711580185 1.1427e-08 au
   Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      7582 days (20.76 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:07  

Additional Information
 Earth MOID = 1.04712 au 
 Jupiter MOID = 2.74187 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457473.5 (2016-Mar-26.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377844195138567 3.4013e-08  
q 2.045555569043585 8.3732e-08 au
tp 2458082.647339337049
(2017-Nov-25.14733934)		 5.412e-05 TDB
node 125.799451379313 2.9129e-05 deg
peri 233.3011212011375 3.2164e-05 deg
i 7.142373745050802 3.5168e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      7582 days (20.76 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:07  

Additional Information
 Jupiter MOID = 2.74187 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.156874295429771E-15 -2.834169402980651E-15 -2.702414840487603E-13 4.714548542371704E-15 -4.854540960089968E-14 1.048637790657248E-15
q -2.834169402980651E-15 7.01110466282599E-15 8.164119591555103E-13 -1.194002957426453E-14 1.499866234859256E-13 -2.221835630588034E-15
tp -2.702414840487603E-13 8.164119591555103E-13 2.929027334920876E-9 -1.189525758294219E-11 7.488000961050126E-10 2.728034979749505E-12
node 4.714548542371704E-15 -1.194002957426453E-14 -1.189525758294219E-11 8.48510800618186E-10 -8.446357699425961E-10 7.300859262577522E-13
peri -4.854540960089968E-14 1.499866234859256E-13 7.488000961050126E-10 -8.446357699425961E-10 1.034546677937499E-9 -2.814293094077033E-14
i 1.048637790657248E-15 -2.221835630588034E-15 2.728034979749505E-12 7.300859262577522E-13 -2.814293094077033E-14 1.236805696392479E-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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