Data are taken from "The Galilean Satellites: New Near-Infrared
Spectral Reflectance (0.65-2.5 microns) and a .325-.5 micron Summary", Clark
and McCord; Icarus, vol. 41, 323-329 (1980). Figure 2, Io Leading.
The "reflt" is the geometric albedo scaled to 1.0 at 1.02 microns
The error is the standard deviation of the mean.

The blue slope:  The standard used was the moon (MS2).  We believe now,
that the moon gives a better point to point correction than stars,
especially in the near-infrared out to 2.5+ um, but the slope can be in
error, depending on the phase of the moon.  So the blue slope could very
well be in error.  In practice, I believe that if you fit a line to the
0.7-2.5um spectrum, it would be essentially horizontal.  Other IR
spectra I have seen show a slightly concave curve with a minimum in the
1.5-um region, and the ends at the same level.  I do not believe any of
the features in the Io cvf data; the spectrum should be considered
smooth at CVF resolution.

Roger N. Clark, June, 1995

       
        wave           reflt          error
        (microns)

        .656000       1.079419        .018538
        .667900       1.078493        .017220
        .679900       1.090564        .021354
        .691700       1.084598        .017190
        .704700       1.070436        .015310
        .716400       1.061084        .014844
        .728900       1.069444        .020330
        .739800       1.079520        .016405
        .751900       1.094518        .013223
        .763600       1.078353        .010317
        .775600       1.054870        .009942
        .786300       1.046553        .014460
        .799000       1.059389        .009841
        .811700       1.054240        .009400
        .822400       1.047498        .009328
        .837100       1.038695        .007903
        .849800       1.017052        .011641
        .862500       1.020124        .007447
        .875800       1.023409        .005026
        .887300       1.013204        .008516
        .899600       1.012648        .008137
        .911800        .987337        .007947
        .924000       1.014149        .013408
        .936200       1.006574        .007798
        .948400       1.021093        .005852
        .961300       1.008862        .006147
        .973500       1.013005        .004593
        .986300       1.001850        .006564
        .997800       1.001579        .006663
       1.010800        .998994        .007683
       1.021800       1.018825        .004905
       1.034500       1.004935        .005412
       1.047100        .997415        .006009
       1.059800        .976847        .003926
       1.072500        .986594        .011586
       1.085200        .976742        .006693
       1.097800        .981468        .009421
       1.109700        .964199        .009902
       1.122700        .940388        .008970
       1.135200        .939409        .008917
       1.147700        .943924        .012768
       1.160400        .942429        .005516
       1.173000        .942497        .007939
       1.185500        .934739        .009811
       1.198100        .949241        .017807
       1.210600        .965110        .012219
       1.223200        .985876        .009533
       1.235700        .985323        .007098
       1.248100        .981508        .010106
       1.261500        .976654        .014512
       1.274500        .953047        .020460
       1.353400        .994505        .014715
       1.375400        .953424        .022146
       1.397900        .992047        .029924
       1.419900        .997729        .020384
       1.441900        .990834        .017647
       1.463700        .975166        .015934
       1.486400        .957848        .011262
       1.506700        .939809        .012192
       1.525400        .932598        .017881
       1.548700        .924065        .011799
       1.568900        .920327        .018734
       1.590400        .926401        .011357
       1.611900        .923938        .015732
       1.632900        .911449        .016323
       1.655200        .911252        .010650
       1.677500        .916051        .008725
       1.699800        .923637        .007477
       1.722100        .913921        .006499
       1.744300        .911751        .010172
       1.764700        .919115        .008825
       1.786700        .913979        .007183
       1.808500        .907211        .007631
       1.831200        .883376        .011658
       1.853200        .907768        .019071
       1.876200        .911272        .016108
       1.899200        .907839        .013764
       1.922200        .916818        .008905
       1.945000        .897428        .008898
       1.968000        .892896        .009217
       1.990900        .877146        .012585
       2.012400        .870936        .015886
       2.034900        .889093        .013715
       2.057900        .880301        .011807
       2.080900        .885668        .011945
       2.104100        .879520        .017154
       2.127200        .869668        .013438
       2.150400        .862965        .013581
       2.173600        .863522        .014706
       2.197000        .853357        .009986
       2.218800        .858875        .012695
       2.241800        .869893        .011688
       2.263900        .867563        .010389
       2.285800        .846095        .012267
       2.306300        .852806        .014961
       2.327800        .844972        .012106
       2.348900        .847216        .013292
       2.370100        .830812        .013907
       2.391600        .843039        .013792
       2.412600        .834704        .017280
       2.434600        .817584        .013965
       2.454600        .813218        .011268
       2.474600        .810011        .011635