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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883935301412838 4.0191e-08  
a 2.357605200083451 9.5432e-09 au
q 1.913447633760282 9.762e-08 au
i 7.953327862035775 3.9918e-06 deg
node 38.28713738885586 3.039e-05 deg
peri 172.6531035057994 3.3378e-05 deg
M 255.5437667371938 1.7313e-05 deg
tp 2458984.151506731172
(2020-May-14.65150673)		 6.501e-05 TDB
period 1322.224036891442
3.62		 8.0283e-06
2.198e-08		 d
yr
n .2722685338910965 1.6532e-09 deg/d
Q 2.80176276640662 1.1341e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1536  
   data-arc span      10462 days (28.64 yr)  
   first obs. used      1991-04-03  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53358  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:40:52  

Additional Information
 Earth MOID = .908176 au 
 Jupiter MOID = 2.16236 au 
 T_jup = 3.516 
[ 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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