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JPL Small-Body Database Browser
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20216 (1997 GS27)
Classification: Main-belt Asteroid          SPK-ID: 2020216
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192210782016806 4.9311e-08  
a 2.635008151449758 2.0264e-08 au
q 2.3208596385637 1.3134e-07 au
i 13.5067900168807 9.2121e-06 deg
node 311.6092966118795 2.2048e-05 deg
peri 112.0231880113546 4.7408e-05 deg
M 136.6285452157577 4.0084e-05 deg
tp 2458007.560592879606
(2017-Sep-11.06059288)
0.00017237 TDB
period 1562.324960909581
4.28
1.8022e-05
4.934e-08
d
yr
n .2304258134558696 2.658e-09 deg/d
Q 2.949156664335815 2.2679e-08 au
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      12889 days (35.29 yr)  
   first obs. used      1984-01-25  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55101  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:50:26  

Additional Information
 Earth MOID = 1.37282 au 
 Jupiter MOID = 2.34105 au 
 T_jup = 3.349 
[ 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 14.6   n/a MPO435887  
diameter diameter 3.366 km 0.435 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.171   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20216 (1997 GS27)          Discovered 1997-Apr-09 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 GS27 = 1984 BA6 = 1999 RO127 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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