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102404 (1999 TJ172)
Classification: Main-belt Asteroid          SPK-ID: 2102404
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1933769951719124 3.7166e-08  
a 2.248880328928323 6.3698e-09 au
q 1.813998608418942 8.2918e-08 au
i 2.225483832736617 4.2973e-06 deg
node 156.0218177920879 8.5241e-05 deg
peri 160.767969494467 8.5809e-05 deg
M 156.1843937452744 9.5912e-06 deg
tp 2458666.079534795503
(2019-Jul-01.57953480)
3.2642e-05 TDB
period 1231.821969276877
3.37
5.2336e-06
1.433e-08
d
yr
n .2922500239310822 1.2417e-09 deg/d
Q 2.683762049437703 7.6016e-09 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      7779 days (21.30 yr)  
   first obs. used      1999-10-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52868  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:31:21  

Additional Information
 Earth MOID = .798757 au 
 Jupiter MOID = 2.60764 au 
 T_jup = 3.603 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO280456  

102404 (1999 TJ172)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 TJ172 = 2002 LY4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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