Semiautomatic sun shots with the WIDIF DIflux

Rasson, Jean L.; Hendrickx, Olivier; Marin, Jean-Luc

doi:10.5194/gi-6-257-2017

Articles | Volume 6, issue 2

https://doi.org/10.5194/gi-6-257-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

The Earth’s magnetic field: measurements, data, and applications...

https://doi.org/10.5194/gi-6-257-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 6, issue 2

Research article

|

13 Jul 2017

Research article |

| 13 Jul 2017

Semiautomatic sun shots with the WIDIF DIflux

Jean L. Rasson, Olivier Hendrickx, and Jean-Luc Marin

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Total article views: 2,593 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
1,490	919	184	2,593	178	208

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PDF: 919
XML: 184
Total: 2,593
BibTeX: 178
EndNote: 208

Views and downloads (calculated since 27 Mar 2017)

Month	HTML	PDF	XML	Total
Mar 2017	43	11	2	56
Apr 2017	82	6	4	92
May 2017	78	4	4	86
Jun 2017	52	12	2	66
Jul 2017	31	16	2	49
Aug 2017	17	14	1	32
Sep 2017	24	6	0	30
Oct 2017	9	3	0	12
Nov 2017	9	7	2	18
Dec 2017	10	6	0	16
Jan 2018	23	12	2	37
Feb 2018	13	8	3	24
Mar 2018	9	7	1	17
Apr 2018	7	6	0	13
May 2018	8	5	0	13
Jun 2018	9	8	0	17
Jul 2018	6	7	2	15
Aug 2018	14	9	0	23
Sep 2018	7	4	0	11
Oct 2018	11	6	4	21
Nov 2018	10	12	1	23
Dec 2018	5	10	2	17
Jan 2019	6	3	0	9
Feb 2019	11	2	0	13
Mar 2019	11	10	1	22
Apr 2019	4	4	0	8
May 2019	7	5	0	12
Jun 2019	6	7	0	13
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Aug 2019	7	4	0	11
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Jan 2020	4	4	1	9
Feb 2020	7	2	1	10
Mar 2020	6	4	1	11
Apr 2020	2	2	0	4
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Jun 2020	37	35	3	75
Jul 2020	46	73	32	151
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Oct 2020	12	3	2	17
Nov 2020	13	9	0	22
Dec 2020	16	2	0	18
Jan 2021	17	7	0	24
Feb 2021	10	7	0	17
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Oct 2021	6	38	0	44
Nov 2021	15	26	1	42
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Jan 2022	13	5	2	20
Feb 2022	9	4	4	17
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Apr 2022	6	3	1	10
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Jan 2023	8	15	1	24
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Jan 2024	5	4	0	9
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Apr 2024	19	11	14	44
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Jul 2024	9	2	2	13
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Oct 2024	12	8	8	28
Nov 2024	3	6	0	9
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Jan 2025	7	5	0	12
Feb 2025	18	6	0	24
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Apr 2025	11	10	0	21
May 2025	13	9	1	23
Jun 2025	31	29	1	61
Jul 2025	16	13	2	31
Aug 2025	30	10	2	42
Sep 2025	64	20	3	87
Oct 2025	32	25	3	60
Nov 2025	23	22	4	49
Dec 2025	9	30	4	43
Jan 2026	28	24	7	59
Feb 2026	7	8	1	16

Cumulative views and downloads (calculated since 27 Mar 2017)

Month	HTML	PDF	XML	Total
Mar 2017	43	11	2	56
Apr 2017	82	6	4	92
May 2017	78	4	4	86
Jun 2017	52	12	2	66
Jul 2017	31	16	2	49
Aug 2017	17	14	1	32
Sep 2017	24	6	0	30
Oct 2017	9	3	0	12
Nov 2017	9	7	2	18
Dec 2017	10	6	0	16
Jan 2018	23	12	2	37
Feb 2018	13	8	3	24
Mar 2018	9	7	1	17
Apr 2018	7	6	0	13
May 2018	8	5	0	13
Jun 2018	9	8	0	17
Jul 2018	6	7	2	15
Aug 2018	14	9	0	23
Sep 2018	7	4	0	11
Oct 2018	11	6	4	21
Nov 2018	10	12	1	23
Dec 2018	5	10	2	17
Jan 2019	6	3	0	9
Feb 2019	11	2	0	13
Mar 2019	11	10	1	22
Apr 2019	4	4	0	8
May 2019	7	5	0	12
Jun 2019	6	7	0	13
Jul 2019	5	4	0	9
Aug 2019	7	4	0	11
Sep 2019	3	7	0	10
Oct 2019	8	4	2	14
Nov 2019	4	3	0	7
Dec 2019	8	7	1	16
Jan 2020	4	4	1	9
Feb 2020	7	2	1	10
Mar 2020	6	4	1	11
Apr 2020	2	2	0	4
May 2020	2	1	0	3
Jun 2020	37	35	3	75
Jul 2020	46	73	32	151
Aug 2020	15	6	2	23
Sep 2020	13	5	1	19
Oct 2020	12	3	2	17
Nov 2020	13	9	0	22
Dec 2020	16	2	0	18
Jan 2021	17	7	0	24
Feb 2021	10	7	0	17
Mar 2021	7	2	0	9
Apr 2021	8	3	0	11
May 2021	5	6	1	12
Jun 2021	11	7	1	19
Jul 2021	5	3	2	10
Aug 2021	8	12	0	20
Sep 2021	6	6	0	12
Oct 2021	6	38	0	44
Nov 2021	15	26	1	42
Dec 2021	12	10	1	23
Jan 2022	13	5	2	20
Feb 2022	9	4	4	17
Mar 2022	9	5	0	14
Apr 2022	6	3	1	10
May 2022	7	2	1	10
Jun 2022	12	3	2	17
Jul 2022	10	3	0	13
Aug 2022	13	3	0	16
Sep 2022	5	3	0	8
Oct 2022	12	3	1	16
Nov 2022	18	6	2	26
Dec 2022	13	5	1	19
Jan 2023	8	15	1	24
Feb 2023	4	5	1	10
Mar 2023	16	5	4	25
Apr 2023	1	4	0	5
May 2023	16	8	4	28
Jun 2023	4	5	1	10
Jul 2023	9	5	2	16
Aug 2023	6	7	2	15
Sep 2023	3	3	0	6
Oct 2023	9	4	0	13
Nov 2023	3	3	1	7
Dec 2023	18	6	2	26
Jan 2024	5	4	0	9
Feb 2024	5	3	0	8
Mar 2024	6	8	0	14
Apr 2024	19	11	14	44
May 2024	8	5	1	14
Jun 2024	14	4	4	22
Jul 2024	9	2	2	13
Aug 2024	22	11	3	36
Sep 2024	10	5	1	16
Oct 2024	12	8	8	28
Nov 2024	3	6	0	9
Dec 2024	4	4	1	9
Jan 2025	7	5	0	12
Feb 2025	18	6	0	24
Mar 2025	20	10	5	35
Apr 2025	11	10	0	21
May 2025	13	9	1	23
Jun 2025	31	29	1	61
Jul 2025	16	13	2	31
Aug 2025	30	10	2	42
Sep 2025	64	20	3	87
Oct 2025	32	25	3	60
Nov 2025	23	22	4	49
Dec 2025	9	30	4	43
Jan 2026	28	24	7	59
Feb 2026	7	8	1	16

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Total article views: 2,593 (including HTML, PDF, and XML) Thereof 2,501 with geography defined and 92 with unknown origin.

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Short summary

In geomagnetism, geodesy and in general disciplines requiring orientation on Earth, accurately finding the direction of true north is a challenge. This paper describes a method to do so using a traditional theodolite and the proposed apparatus: an electro-optical add-on. The details of the concepts, design and operation of the add-on are explained.


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