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JPL Small-Body Database Browser
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74525 (1999 GW22)
Classification: Main-belt Asteroid          SPK-ID: 2074525
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 .141556294016281 7.5948e-08  
a 3.102796792906894 3.2179e-08 au
q 2.663576377817392 2.4026e-07 au
i 15.16927476740466 7.0705e-06 deg
node 5.886622708651513 2.0945e-05 deg
peri 190.9889787638127 3.122e-05 deg
M 231.8923045054213 2.7133e-05 deg
tp 2459310.897044146489
(2021-Apr-06.39704415)
0.00015609 TDB
period 1996.312047495684
5.47
3.1056e-05
8.503e-08
d
yr
n .1803325289007846 2.8053e-09 deg/d
Q 3.542017207996395 3.6734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      7526 days (20.61 yr)  
   first obs. used      1999-03-23  
   last obs. used      2019-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61072  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:54:38  

Additional Information
 Earth MOID = 1.66484 au 
 Jupiter MOID = 1.42824 au 
 T_jup = 3.153 
[ 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 14.2   n/a MPO426451  
diameter diameter 6.569 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74525 (1999 GW22)          Discovered 1999-Apr-06 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GW22 = 2002 VU20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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