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74970 (1999 TF217)
Classification: Main-belt Asteroid          SPK-ID: 2074970
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09942919138913531 4.3028e-08  
a 2.208596327509235 8.7593e-09 au
q 1.988997380559978 9.5617e-08 au
i 6.121290480040065 3.73e-06 deg
node 51.88333684165092 4.513e-05 deg
peri 112.4464201952379 4.9e-05 deg
M 214.9481873494588 1.9421e-05 deg
tp 2459083.551689020467
(2020-Aug-22.05168902)
6.5571e-05 TDB
period 1198.87235374524
3.28
7.1321e-06
1.953e-08
d
yr
n .3002821767266307 1.7864e-09 deg/d
Q 2.428195274458492 9.6302e-09 au
  Orbit Determination Parameters
   # obs. used (total)      880  
   data-arc span      7355 days (20.14 yr)  
   first obs. used      1999-10-09  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51848  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:50:13  

Additional Information
 Earth MOID = 1.00541 au 
 Jupiter MOID = 2.55211 au 
 T_jup = 3.645 
[ 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 15.7   n/a MPO319944  
diameter diameter 2.166 km 0.349 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.261   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74970 (1999 TF217)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TF217 = 2001 FJ167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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