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85448 (1997 GR11)
Classification: Main-belt Asteroid          SPK-ID: 2085448
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 .1744689153082424 2.9582e-08  
a 2.243572909097667 7.4145e-09 au
q 1.852139177232439 6.5224e-08 au
i 3.8694681137622 3.6153e-06 deg
node 229.3284855952312 4.9398e-05 deg
peri 84.90812699967249 5.0665e-05 deg
M 220.5953274883436 1.2949e-05 deg
tp 2459475.817208176514
(2021-Sep-18.31720818)
4.5477e-05 TDB
period 1227.463842212586
3.36
6.0847e-06
1.666e-08
d
yr
n .2932876616154134 1.4539e-09 deg/d
Q 2.635006640962894 8.7081e-09 au
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      8420 days (23.05 yr)  
   first obs. used      1997-04-03  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55275  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:36:58  

Additional Information
 Earth MOID = .843252 au 
 Jupiter MOID = 2.64143 au 
 T_jup = 3.609 
[ 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 16.2   n/a MPO449530  
diameter diameter 2.274 km 0.655 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.124   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85448 (1997 GR11)          Discovered 1997-Apr-03 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 GR11 = 1998 VH23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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