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11894 (1991 GW)
Classification: Main-belt Asteroid          SPK-ID: 2011894
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882836635750329 3.9432e-08  
a 2.357124732906767 8.3223e-09 au
q 1.91331665269176 9.5054e-08 au
i 7.953264282496705 3.8923e-06 deg
node 38.28007083069238 2.9863e-05 deg
peri 172.7259292154605 3.2138e-05 deg
M 4.403049463623007 1.4412e-05 deg
tp 2458984.333227098160
(2020-May-14.83322710)		 5.2875e-05 TDB
period 1321.819864334113
3.62		 7.0004e-06
1.917e-08		 d
yr
n .2723517853783772 1.4424e-09 deg/d
Q 2.800932813121773 9.8893e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1637  
   data-arc span      10534 days (28.84 yr)  
   first obs. used      1991-04-03  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:11:18  

Additional Information
 Earth MOID = .907814 au 
 Jupiter MOID = 2.16235 au 
 T_jup = 3.517 
[ 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 14.2   n/a MPO365393  
diameter diameter 7.298 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11894 (1991 GW)          Discovered 1991-Apr-03 by Kawasato, N. at Uenohara
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 GW = 1996 TU4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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