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JPL Small-Body Database Browser
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74878 (1999 TK104)
Classification: Main-belt Asteroid          SPK-ID: 2074878
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .205225377401876 5.6149e-08  
a 2.418377173311166 1.4046e-08 au
q 1.9220648052183 1.3532e-07 au
i 5.64567396239726 5.4882e-06 deg
node 357.2158935290371 4.3513e-05 deg
peri 349.2941626716467 4.4883e-05 deg
M 98.39090789404086 1.2419e-05 deg
tp 2458225.063107516916
(2018-Apr-16.56310752)
4.6323e-05 TDB
period 1373.676533602715
3.76
1.1968e-05
3.277e-08
d
yr
n .2620704301148938 2.2832e-09 deg/d
Q 2.914689541404032 1.6929e-08 au
  Orbit Determination Parameters
   # obs. used (total)      691  
   data-arc span      8049 days (22.04 yr)  
   first obs. used      1997-01-09  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57522  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:23:32  

Additional Information
 Earth MOID = .914684 au 
 Jupiter MOID = 2.50068 au 
 T_jup = 3.480 
[ 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 15.6   n/a MPO263910  
diameter diameter 2.156 km 0.646 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.219   0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74878 (1999 TK104)          Discovered 1999-Oct-03 by LINEAR at Socorro
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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