IceCube SSA Converter - v1.11

Data exported on 2020-09-02T16:28:43

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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	69.6	5.22
#2	112.6	10.44
#3	189	19.22
#4	500.1	48.3
#5	850.1	70.19
#6	1590.1	98.25

Number of standards used for calibration:	6
Overall calibration quality:	Fair
Overall residue for polynomial fit:	635.451

*** 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
2 standard(s) with good fitting:	 #3 #5
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:	1,231

Comment on calibration: 24 December 2018 DF Pit Sat 250-2

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Acquisition data

Sample number	Sample signal	Reflectance	Specific surface area (SSA)	Comment
1	507	48.83	45.5	Surface 0-1 cm, little crusty snow
2	473.8	46.23	39.5	
3	437	43.21	33.5	
4	428	42.45	32.2	Surface 1-2 cm
5	427.1	42.37	32	
6	431.4	42.74	32.7	
7	425.3	42.22	31.8	Surface 2-3 cm
8	418.7	41.65	30.8	
9	418.4	41.63	30.7	
10	410.8	40.97	29.7	Surface 3-4 cm
11	410.7	40.96	29.6	
12	409.8	40.88	29.5	
13	435.9	43.12	33.3	Surface 4-5 cm
14	422.7	42	31.4	
15	419.8	41.75	30.9	
16	436.7	43.18	33.5	127-118 cm, not crusty surface
17	448.7	44.18	35.3	
18	437	43.21	33.5	
19	331.6	33.7	20	118-114 cm
20	342.6	34.76	21.2	
21	333.4	33.87	20.2	
22	330.4	33.58	19.9	114-110 cm
23	323.2	32.88	19.1	
24	320.7	32.64	18.9	
25	320.8	32.65	18.9	110-100 cm
26	325.6	33.12	19.4	
27	319.6	32.53	18.8	
28	272.5	27.72	14.5	100-89 cm
29	281.3	28.64	15.3	
30	280.4	28.55	15.2	
31	301.4	30.71	17	89-76 cm
32	300.6	30.63	17	
33	281.8	28.7	15.3	
34	259.5	26.33	13.5	76-72 cm
35	258.4	26.21	13.4	
36	264.6	26.88	13.9	
37	236	23.76	11.7	72-60 cm
38	242.2	24.45	12.2	
39	240.5	24.26	12.1	
40	223.5	22.35	10.8	60-45 cm
41	218.6	21.79	10.5	
42	226.4	22.68	11	
43	292.6	29.81	16.2	45-33 cm
44	291.3	29.68	16.1	
45	300.4	30.61	16.9	
46	263.4	26.75	13.8	33-0 cm
47	270.5	27.51	14.4	
48	266.4	27.07	14