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172800 (2004 FW122)
Classification: Main-belt Asteroid          SPK-ID: 2172800
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324833040508338 6.582e-08  
a 2.672996239431074 2.046e-08 au
q 2.318868865915792 1.7986e-07 au
i 7.680345908447013 5.5607e-06 deg
node 306.054219330039 4.723e-05 deg
peri 256.851485077549 5.0675e-05 deg
M 245.4149608125933 1.9951e-05 deg
tp 2459508.567442031760
(2021-Oct-21.06744203)
9.072e-05 TDB
period 1596.231763138722
4.37
1.8327e-05
5.018e-08
d
yr
n .2255311592673236 2.5894e-09 deg/d
Q 3.027123612946357 2.317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      6652 days (18.21 yr)  
   first obs. used      2001-09-16  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61729  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:01:06  

Additional Information
 Earth MOID = 1.33077 au 
 Jupiter MOID = 2.0148 au 
 T_jup = 3.355 
[ 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 MPO502963  
diameter diameter 3.829 km 1.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172800 (2004 FW122)          Discovered 2004-Mar-26 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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