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SLR RIGA – 1884 INSTITUTE OF ASTRONOMY LATVIA UNIVERSITY SLR FALL WORKSHOP 2-7 OCTOBER 2005. HERSTMONCEUX K.LAPUSHKA

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Presentation on theme: "SLR RIGA – 1884 INSTITUTE OF ASTRONOMY LATVIA UNIVERSITY SLR FALL WORKSHOP 2-7 OCTOBER 2005. HERSTMONCEUX K.LAPUSHKA"— Presentation transcript:

1 SLR RIGA – 1884 INSTITUTE OF ASTRONOMY LATVIA UNIVERSITY SLR FALL WORKSHOP 2-7 OCTOBER 2005. HERSTMONCEUX K.LAPUSHKA riglas@lanet.lv

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6 SATELLITE DAYTIME RANGING TELESCOPE SETTINGS. 1. MAIN APERTURE 800 mm RIGA-1884 LS-100 2.SPACE FILTER 30 or 60 arcsec. 3.Interference filter 30 angstroms, 532.0 nm, FWHM 4.Range window 4 usec 5.Window pre-setting 2 usec 6.FCC discriminator 160 mV 7.CFD discriminator 120 mV 8.H6780-20 PMT voltage -900 V 9.Input beam splitting 50:50 10.FCC pulse width 10 nsec 11.PMT pulse amplitude -3.2 V max. 12.PMT pulse width 2.5 nsec FWHM

7 Telescope control and Data recording.

8 74166.501501400 39567034981.8 2981.0 74166.601501400 39566566470.4 1523.7 74166.901501400 39565161476.6 1773.7 74167.101501400 39564225814.8 1666.5 74167.401501400 39562824157.3 1916.0 74168.601501400 39557235521.1 3119.8 74168.901501400 39555843374.7 2344.2 74169.401501400 39553526422.3 4156.0 74169.501501400 39553064134.9 1778.3 74169.801501400 39551677556.0 1787.2 74170.101501400 39550292382.0 3799.5 74170.301501400 39549370344.1 2783.9 74170.701501400 39547528543.0 2870.5 74170.801501400 39547068332.5 2251.6 74171.101501400 39545689855.7 3635.8 74171.501501400 39543854716.0 2317.6 74176.801501400 39519854006.3 1825.6 74180.601501600 39503008165.4 2668.3 74180.901501400 39501691202.1 1532.5 74181.201501400 39500375734.7 2622.5 74181.501501400 39499062422.3 2373.1 74182.101501400 39496441416.2 3132.1 74182.401501400 39495133941.9 2319.2 74182.701501400 39493828184.3 2150.6

9 85855.501501400 517565.5 3369.4 85855.601501400 517551.8 4271.7 85855.701501400 517489.2 2810.9 85855.801501400 517516.2 3968.5 85855.901501400 517589.0 4159.1 85856.001501400 517580.0 3184.9 85856.101501400 517559.8 4663.5 85856.201501400 517557.5 5439.0 85856.301501400 517505.5 4794.4 85856.401501400 517588.0 4482.4 85856.501501400 517588.8 4395.8 85856.601501400 517501.5 6233.0 85856.701501400 517498.2 3349.2 85856.801501400 517538.8 4284.0 85856.901501400 517553.0 4109.1 85857.001501400 517499.8 3089.3 85857.101501400 517556.5 4394.2 85857.201501400 517560.5 4125.8 85857.301501400 517554.8 5467.0 85857.401501400 517547.8 5172.1 85857.501501400 517522.8 4524.0 85857.601501400 517492.2 4499.1 85857.701501400 517550.8 5103.5 85857.801501400 517509.0 4445.7

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25 PMT IMAGE AMPLIFIER FIXED DICHROIC MIRROR RIGA LASER TELESCOPE PLANNED CHANGES LASER

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29 INTERTECHNIQUE SITE TIES SITE RIGA-1884 1994. LOCAL GPS SESSION. ASHTECH. GPS to SLR. d x = -3.4046 m dy = 18.6602 m dz = -6.9618 m 1995. LOCAL GPS SESSION. TRIMBLE. d x = -3.4010 m dy = 18.6610 m dz = -6.9630 m 2004. SESSION. TACHEOMETRE. SET-4220. d x = -3.4051 m dy = 18.6609 m dz = -6.9630 m

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