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100555 (1997 GY1)
Classification: Main-belt Asteroid          SPK-ID: 2100555
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1393710990249885 7.2096e-08  
a 2.460326887628013 1.0446e-08 au
q 2.117428425338567 1.7886e-07 au
i 3.580140151661924 5.2113e-06 deg
node 191.8754846563684 8.5612e-05 deg
peri 319.877415899018 8.7377e-05 deg
M 76.71149713893216 1.4265e-05 deg
tp 2458900.137573560079
(2020-Feb-20.63757356)
5.6113e-05 TDB
period 1409.573239361192
3.86
8.977e-06
2.458e-08
d
yr
n .2553964490437895 1.6265e-09 deg/d
Q 2.803225349917458 1.1902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      8478 days (23.21 yr)  
   first obs. used      1997-03-05  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50144  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:33  

Additional Information
 Earth MOID = 1.12919 au 
 Jupiter MOID = 2.19579 au 
 T_jup = 3.474 
[ 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 16.34   n/a E2021B55  
diameter diameter 3.504 km 0.828 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100555 (1997 GY1)          Discovered 1997-Apr-07 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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