IceCube SSA Converter - v1.11

Data exported on 2020-10-05T11:40:36

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IceCube device

Serial number:	IS3-SP-14-02N
Device released on:	2014-11-19
Last revised on:	2014-11-19
NOTE: this IceCube device was last revised more than 5 years ago.
Please consider recalibrating it in the near future for optimal results.

Sphere wall surface (%):	0.981768
Snow surface (%):	0.015751
Photodiode surface (%):	0.000145

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Calibration data

Set of reflectance standards
Serial number:	IS3-RS-14-02N
Released on:	2014-11-19
Last revised on:	2014-11-19
NOTE: this set was last revised more than 5 years ago.
Please consider recalibrating it in the near future for optimal results.

Standard #	Signal (mV)	Reflectance (%)
#1	68.3	5.22
#2	111.2	10.44
#3	185.8	19.22
#4	498	48.3
#5	844.5	70.19
#6	1577	98.25

Number of standards used for calibration:	6
Overall calibration quality:	Fair
Overall residue for polynomial fit:	745.56

*** A fair quality calibration will strongly reduce the system accuracy. It is advised that you go through calibration again, or revise your standards.

2 standard(s) with excellent fitting:	 #4 #6
1 standard(s) with good fitting:	 #5
1 standard(s) with fair fitting:	 #3
2 standard(s) with poor fitting:	 #1 #2

*** Information about the fit of individual standards is only indicative: because of the way polynomial regression works, the standard(s) responsible for a bad calibration quality might appear with a perfect fit, and vice-versa.

Background (mV):	52

Optical parameters
Fraction of collimated photons:	0.999
Reflectance of sphere wall:	0.9915

Electronics gain:	1,221

Comment on calibration: 08.01.19 Pit 66 cm sastrugi area MD246

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Acquisition data

Sample number	Series	Sample signal	Reflectance	Specific surface area (SSA)	Comment
1	66-57 cm	354.4	36.11	22.8	Surface with crust on top
2	66-57 cm	344.4	35.16	21.6	Surface with crust on top
3	66-57 cm	349.6	35.65	22.2	Surface with crust on top
4	66-57 cm	270.8	27.73	14.6	Surface without crust
5	66-57 cm	255.8	26.11	13.3	Surface without crust
6	66-57 cm	257.9	26.34	13.5	Surface without crust
7	57-38 cm	273.7	28.04	14.8	
8	57-38 cm	278.5	28.54	15.2	
9	57-38 cm	269.8	27.62	14.5	
10	38-24 cm	295.8	30.34	16.7	
11	38-24 cm	301.2	30.89	17.2	
12	38-24 cm	300.7	30.84	17.2	
13	24-19 cm	310.2	31.8	18.1	
14	24-19 cm	307.2	31.5	17.8	
15	24-19 cm	300.7	30.84	17.2	
16	19-0 cm	264.1	27.01	14	
17	19-0 cm	249.8	25.46	12.9	
18	19-0 cm	254.7	25.99	13.3