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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 
[ 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 15.8   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2011-Dec-31 21:35 < 00:01 Hebe 0.0365476838505591 0.0365469084145414 0.0365484592871437 2.86444572667603 2.86444566729372 2455927.399523374 0.767015146645368 65.7511607028977 38.2682841522469 84.4331433127545 142250.077722489 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 23:51:22 2020-Jun-23 23:51

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