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74821 (1999 TP13)
Classification: Main-belt Asteroid          SPK-ID: 2074821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1423882889527595 3.4538e-08  
a 2.365687177481208 9.3236e-09 au
q 2.028841028082176 8.2784e-08 au
i 1.935072596996472 4.1192e-06 deg
node 219.0011993864944 0.0001266 deg
peri 192.66793079629 0.00012762 deg
M 108.4903850355735 1.6908e-05 deg
tp 2458199.980974790817
(2018-Mar-22.48097479)
6.1569e-05 TDB
period 1329.028826176879
3.64
7.8569e-06
2.151e-08
d
yr
n .2708744858722033 1.6014e-09 deg/d
Q 2.702533326880241 1.0651e-08 au
  Orbit Determination Parameters
   # obs. used (total)      984  
   data-arc span      8058 days (22.06 yr)  
   first obs. used      1997-03-05  
   last obs. used      2019-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52918  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:35:00  

Additional Information
 Earth MOID = 1.03918 au 
 Jupiter MOID = 2.63918 au 
 T_jup = 3.534 
[ 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 15.6   n/a MPO432301  
diameter diameter 2.030 km 0.251 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.429   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74821 (1999 TP13)          Discovered 1999-Oct-10 by Crni Vrh at Crni Vrh
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TP13 = 1997 EA40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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