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20573 Garynadler (1999 RW137)
Classification: Main-belt Asteroid          SPK-ID: 2020573
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04385498765078849 3.9745e-08  
a 2.699567153087195 1.4139e-08 au
q 2.581177668926081 1.1003e-07 au
i 6.374485444398727 4.0704e-06 deg
node 154.850107620001 3.7953e-05 deg
peri 204.4795527804478 5.8219e-05 deg
M 266.7432400860239 4.4522e-05 deg
tp 2459620.179205745592
(2022-Feb-09.67920575)
0.00020053 TDB
period 1620.09182184519
4.44
1.2728e-05
3.485e-08
d
yr
n .2222096273469124 1.7457e-09 deg/d
Q 2.817956637248308 1.4759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1228  
   data-arc span      8511 days (23.30 yr)  
   first obs. used      1997-03-02  
   last obs. used      2020-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50274  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:24:03  

Additional Information
 Earth MOID = 1.57578 au 
 Jupiter MOID = 2.37501 au 
 T_jup = 3.358 
[ 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 14.68   n/a E2021B10  
diameter diameter 4.061 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.02 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.186   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20573 Garynadler           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Gary Nadler mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. He teaches at the John Glenn Middle School of International Studies, Indio, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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