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85442 (1997 GW1)
Classification: Main-belt Asteroid          SPK-ID: 2085442
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08612127743868755 5.3736e-08  
a 2.43295039003575 1.2783e-08 au
q 2.223421594500918 1.3567e-07 au
i 2.436811964250373 5.5502e-06 deg
node 199.4418170050037 0.00010964 deg
peri 142.9323638967423 0.00011252 deg
M 139.4945080652079 2.5594e-05 deg
tp 2458063.402765964992
(2017-Nov-05.90276597)
9.8195e-05 TDB
period 1386.111947591638
3.79
1.0924e-05
2.991e-08
d
yr
n .2597192821442005 2.0468e-09 deg/d
Q 2.642479185570582 1.3883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      330  
   data-arc span      9926 days (27.18 yr)  
   first obs. used      1991-11-05  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55097  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:43:48  

Additional Information
 Earth MOID = 1.21491 au 
 Jupiter MOID = 2.65203 au 
 T_jup = 3.500 
[ 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 16.6   n/a MPO426529  
diameter diameter 2.608 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.049   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

85442 (1997 GW1)          Discovered 1997-Apr-07 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 GW1 = 2002 RV23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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