a953b143499c.jpg

https://i.ibb.co/JFvnJfS/a953b143499c.jpg
#3637: Successfully georeferenced
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Georeferencing Error

Mean Absolute Error Root Mean Square Error Maximum Error
0.3%
0.3%
0.7%
2.247 pixels 2.601 pixels 5.283 pixels
2.639 km 3.011 km 6.368 km

🡇 Parameters

Estimated Transform

Type: Polynomial (3nd order)
Coefficients:
Long = 0.0x3 +0.0x2y +0.0xy2 0.0y3 +0.0x2 0.0xy 0.0y2 +0.0x +0.0y +1.4
Lat = +0.0x3 +0.0x2y +0.0xy2 +0.0y3 0.0x2 0.0xy 0.0y2 +0.0x 0.0y +13.4

Control Points

🡇 CSV 🡇 GeoJSON

ID Name Longitude Latitude Source Residual (km)
180926 Akure 5.19998205427 7.25039593396 Auto 6.368 0.7%
180906 Sokoto 5.20719 12.91632 Auto 4.524 0.6%
180918 Minna 6.5500288479 9.61999289849 Auto 4.024 0.4%
180910 Kano 8.5166667 11.9963889 Auto 3.985 0.4%
180915 Gombe 11.1699535712 10.290442931 Auto 3.817 0.4%
180931 Owerri 7.03325 5.48363 Auto 3.720 0.5%
180907 Katsina 7.60063 12.98943 Auto 3.315 0.4%
180909 Gusau 6.7 12.166667 Auto 3.307 0.4%
180908 Birnin Kebbi 4.19993973656 12.450414448 Auto 2.681 0.4%
180914 Kaduna 7.45 10.6 Auto 2.674 0.3%
180933 Yenagoa 6.26764 4.92675 Auto 2.645 0.3%
180917 Jos 8.89212 9.92849 Auto 2.362 0.2%
180924 Makurdi 8.5333333 7.7333333 Auto 2.172 0.2%
180921 Jalingo 11.37 8.89 Auto 2.037 0.2%
180927 Abeokuta 3.35001745465 7.16042726534 Auto 1.898 0.2%
180919 Yola 12.4800028063 9.20999208469 Auto 1.606 0.2%
180928 Benin City 5.6 6.31667 Auto 1.547 0.1%
180932 Uyo 7.92657 5.033333 Auto 1.362 0.2%
180911 Maiduguri 13.15712 11.84692 Auto 0.653 0.1%
180916 Bauchi 9.84327 10.31344 Auto 0.450 0.0%
180912 Damaturu 11.9660045725 11.748996081 Auto 0.278 0.0%
ID Name Longitude Latitude Source Residual (km)
180913 Zaria 7.730000 11.020000 Auto
180920 Abuja 6.931355 9.247026 Auto
180922 Lafia 8.520038 8.490424 Auto
180923 Lokaja Auto
180925 Ekiti Auto
180929 Porto-Novo 2.621389 6.479444 Auto
180930 Awl Auto
180934 Port Auto
180935 CHAD Auto
180936 BENIN 2.315830 9.307690 Auto
180937 CHAD Auto
180938 CAMEROON Auto

About maplocate

Maplocate is a free map georeferencing service created by Karim Bahgat, with support from the William & Mary GeoLab.