1. CREATION OF DIGITAL SURFACE MODELS USING RESURS-P STEREO PAIRS Alexey Peshkun Deputy Head of Department 15th International Scientific and Technical Conference FROM IMAGERY TO MAP: digital photogrammetric technologies Cancun, Mexico 10.26.2015 – 10.28.2015

2. Resurs-P satellite Main characteristics of GEOTON-L1 sensor Focal length, mm 4000 Diameter of the entrance pupil, mm500 Aperture1:8 Field of view, deg5°18’ Pixel size, µm panchromatic spectral 6х6 18х18 GSD: panchromatic, m multispectral, m 1.0 3.0-4.0 Span width, km38 Spectral bands, µm : panchromatic blue green red red edge NIR 1 NIR 2 0.62-0.79 0.48-0.53 0.54-0.59 0.62-0.68 0.70-0.75 0.72-0.80 0.81-0.88 Number of simultaneously used bands1-5 bit per pix10

3. Resurs-P satellite Main characteristics of Complex wide field multispectral sensors characteristics Values Medium resolution High resolution Optic system: Focal length, mm Aperture Field of view, deg 40 1:4 54°30’ 200 1:3 11°70’ Span width, km441.797.2 GSD: panchromatic, m spectral, m 59 118 12 23.8 Spectral bands, µm : panchromatic blue green red NIR 1 NIR 2 0.43-0.7 0.43-0.51 0.51-0.58 0.60-0.70 0.7-0.9 0.8-0.9 Pixel size, µm panchromatic multispectral 5х5 10х10 bit per pix12

4. Resurs-P satellite Main characteristics of Hyperspectral sensor Span width, km30 GSD, m25-30 Spectral bands, µm 0.4-1.1 Number of bandsmore than 96 Spectral resolution, nm5-10

5. Resurs-P satellite Orbit parameters Typecircular sun-synchronous Height, km475 Inclination, deg97.28 Revisit time, days3 Orbital period, min94

6. Imaging modes Linear imaging Linear imaging can be performed with a constant roll and pitch, and with a given azimuth. Deviation of the spacecraft roll and pitch from the nadir possible up to ± 45 °, yaw - up to ± 60 °. Duration routes from 2 to 300 seconds. flight direction s w a t h w i d t h

7. Imaging modes Areal imaging flight direction s w a t h w i d t h

8. Imaging modes Stereoimaging Stereoimaging is performed at a single turn with a deviation by the pitch. Length of routes - up to 115 km. flight direction s w a t h w i d t h

9. Resurs-P stereoimaging Stereopairs stereopair Deviation in pitch, degrees Convergence angle, degrees Image 1Image 2 A32.512.044.2 B12.936.546.3 Triplet C47.22.546.6 D2.544.144.4 Additional stereopairs E32.536.568.4 F12.912.022.7 G2.536.537.3 H32.52.532.5 flight direction

10. Data processing Photogrammetric processing was performed by using the "Photomod" v.6. The block of 7 images was formed during processing. To perform the block adjustment 7 controls and 76 check points were used. control point check point

11. Data processing Stereopairs adjustment (data level 1А) Stereopair, №№ Convergence angle, degrees Number of control points Number of check points Max deviation dXY (control points), meters Max deviation dZ (coctrol points), meters RMS dXY (control points), meters RMS dZ (control points), meters Max deviation dXY (check points), meters Max deviation dZ (check points), meters RMS dXY (check points), meters RMS dZ (check points), meters A44.24530.711.330.480.834.396.331.882.64 B46.35653.109.062.387.203.6410.732.246.69 C46.64431.152.650.701.503.355.641.923.05 D44.44431.132.840.701.683.326.172.003.61 F22.73550.840.870.550.643.6010.381.584.68 E68.45584.025.743.204.464.937.943.234.49 G37.35581.3411.171.037.693.1613.941.799.37 H32.64521.162.090.721.203.405.961.783.26 flight direction

12. Data processing Accuracy of DSM Stereopair, №№ Number of check points MAX deviation, meters RMS, meters A405.262.00 C236.242.76 D298.953.54 H235.663.65 №54912.176.13 flight direction

13. Data processing Stereopairs adjustment (data level 2А) Stereopair, №№ Convergence angle, degrees Number of control points Number of check points Max deviation dXY (control points), meters Max deviation dZ (coctrol points), meters RMS dXY (control points), meters RMS dZ (control points), meters Max deviation dXY (check points), meters Max deviation dZ (check points), meters RMS dXY (check points), meters RMS dZ (check points), meters A 44.25491.502.370.961.832.596.521.222.56 B 46.35591.502.870.931.771.993.721.132.10 C 46.64390.840.780.650.511.845.550.931.19 D 44.45390.840.63 0.511.832.710.941.10 F 22.74521.044.090.822.642.2810.421.034.70 E 68.45521.751.410.870.712.302.671.251.06 G 37.34520.911.520.681.071.834.550.891.56 H 32.63480.672.130.581.471.734.070.951.75 flight direction

14. Data processing DSM (input data level 2A) Stereopair, №№ Number of check points MAX deviation, meters RMS, meters D323.651.64 LV 2А346.453.04

15. Data processing Stereopairs adjustments reports Input data kevel Stereopair, №№ Convergence angle, degrees Number of control points Number of check points Max deviation dXY (control points), meters Max deviation dZ (coctrol points), meters RMS dXY (control points), meters RMS dZ (control points), meters Max deviation dXY (check points), meters Max deviation dZ (check points), meters RMS dXY (check points), meters RMS dZ (check points), meters 1A A44.24530.711.330.480.834.396.331.882.64 B46.35653.109.062.387.203.6410.732.246.69 C46.64431.152.650.701.503.355.641.923.05 D44.44431.132.840.701.683.326.172.003.61 F22.73550.840.870.550.643.6010.381.584.68 E68.45584.025.743.204.464.937.943.234.49 G37.35581.3411.171.037.693.1613.941.799.37 H32.64521.162.090.721.203.405.961.783.26 2A A 44.25491.502.370.961.832.596.521.222.56 B 46.35591.502.870.931.771.993.721.132.10 C 46.64390.840.780.650.511.845.550.931.19 D 44.45390.840.63 0.511.832.710.941.10 F 22.74521.044.090.822.642.2810.421.034.70 E 68.45521.751.410.870.712.302.671.251.06 G 37.34520.911.520.681.071.834.550.891.56 H 32.63480.672.130.581.471.734.070.951.75

16. Data processing Input data level 1А Accuracy of DSM Input data level 2А Stereopair, №№ Number of check points MAX deviation, meters RMS, meters A405.262.00 C236.242.76 D298.953.54 H235.663.65 №54912.176.13 Stereopair, №№ Number of check points MAX deviation, meters RMS, meters D323.651.64 LV 2А346.453.04

17. Thank you for attention!