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100556 (1997 GS2)
Classification: Main-belt Asteroid          SPK-ID: 2100556
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1329880429755003 3.9502e-08  
a 2.759989425939956 1.3269e-08 au
q 2.392943833551127 1.083e-07 au
i 3.511098297966608 5.2438e-06 deg
node 12.7361546898907 6.4417e-05 deg
peri 117.1176977649272 6.8483e-05 deg
M 61.8432694878652 2.1085e-05 deg
tp 2458712.793618501666
(2019-Aug-17.29361850)
9.758e-05 TDB
period 1674.786895924436
4.59
1.2078e-05
3.307e-08
d
yr
n .2149527207766275 1.5501e-09 deg/d
Q 3.127035018328786 1.5034e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1997-03-05  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53626  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:33  

Additional Information
 Earth MOID = 1.41015 au 
 Jupiter MOID = 1.91947 au 
 T_jup = 3.326 
[ 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 15.78   n/a E2021B55  
diameter diameter 3.473 km 0.285 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100556 (1997 GS2)          Discovered 1997-Apr-07 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 GS2 = 2001 BA36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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