78113802 2021 278 14:00 1 12.03.03 METEO New humidity sensor has been installed VAISALA WXT536 
78113802 2021 278 14:00 1 12.02.03 METEO New temperature sensor has been installed VAISALA WXT536 
78113802 2021 278 14:00 1 12.01.03 METEO New pressure sensor has been installed VAISALA WXT536 
78113802 2021 169 15:00 0 5.03 LASER EKSPLA PL-2250 laser service 
78113802 2020 337 16:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2020 288 17:00 0 6.03 RECEIVER Discriminator power failure - fuse replacing 
78113802 2020 264 19:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2020 244 10:00 0 99 ROOF Starting the installation of the new system for the opening of the roof. Installation was finished on September 15 (day 259)  
78113802 2020 229 20:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2020 171 10:00 1 8.03 CALIBRATION New illumination of the external target 
78113802 2020 169 10:00 1 8.03 CALIBRATION Painting of the external target (black coatting) 
78113802 2020 165 21:00 0 99 ROOF Roof failure. Steel cord and pulley were broken. Repaired on June 16 (day 168) 
78113802 2020 160 14:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2020 156 20:00 0 5.03 LASER Self-shutdown of the EKSPLA PL-2250 laser module - lack of air condintioning system 
78113802 2020 150 14:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2020 132 17:00 1 6.03 RECEIVER Failure of the amplifier for H5023 detector 
78113802 2020 098 10:00 0 99 SYSTEM Repair of the main power supply in the CAMAC crate 
78113802 2020 087 17:00 0 99 ROOF Roof failure. Steel cord was dropped from the pulley 
78113802 2020 081 19:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2020 076 18:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2020 069 17:00 1 6.03 RECEIVER Power supply exchange in CAMAC crate 
78113802 2020 056 11:00 0 8.03 TARGET Repair of the target lighting 
78113802 2020 036 12:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2020 032 10:00 0 99 ROOF Installation of the metal sheet for the hatch 
78113802 2019 308 10:00 0 99 ROOF Installation of the ascender for the hatch 
78113802 2019 277 12:00 2 6.03 RECEIVER The change of the "start level" of the discriminator from -180mV to -500mV. The start pulse is -3V for 100% of pulse energy 
78113802 2019 256 12:00 0 4.03 TELESCOPE Cleaning of the mirrors of the main telescope (primary/secondary) and coude path 
78113802 2019 204 12:00 0 5.03 LASER Overheating of EKSPLA PL-2250 laser module - distilled water was added 
78113802 2019 175 12:00 0 5.03 LASER External water filter exchange and distilled water was added in power supply of EKSPLA PL-2250 laser module 
78113802 2019 091 14:00 0 4.03 COUDE Installation of the new plexglass tube in coude path (directly under telescope) 
78113802 2018 295 18:00 2 6.03 RECEIVER Exchanged of the "START cable" in TENNELEC. 
78113802 2018 246 14:00 0 5.03 LASER Water exchange and water filter exchange of power supply of EKSPLA PL-2250 laser module 
78113802 2018 233 09:00 0 5.03 LASER EKSPLA PL-2250 laser service 
78113802 2018 205 23:00 0 4.03 TELESCOPE Exchanged of the external lens in the transmitter tube of the main telescope 
78113802 2018 200 23:00 2 6.03 RECEIVER Power supply exchange for detector H5023 from HV to ZWN-24. The input voltage set to 2200V 
78113802 2018 190 16:00 0 5.03 LASER Flash lamps exchange in EKSPLA laser. Input voltage of power supply changed from 1300V to 1295V 
78113802 2018 187 23:00 2 4.03 TELESCOPE New filters nr 4 and 6 (calibration tests) 
78113802 2018 177 23:00 1 6.03 RECEIVER Autocalibration of the STANFORD counter 
78113802 2018 149 23:00 1 6.03 RECEIVER New settings of discrimnator for starting photodiode (1.75V) 
78113802 2018 107 18:00 1 8.03 CALIBRATION Painting of the external target (black coatting) 
78113802 2018 078 21:00 1 6.03 RECEIVER New trigger level for discriminator from -150mV to -100mV 
78113802 2018 068 21:00 1 4.03 TELESCOPE Exchange of the green filter (Thorlabs FL532-10 CWL=532 nm, FWHM=10 nm) 
78113802 2018 046 21:00 2 4.03 TELESCOPE Correction of the filter nr 7 (calibration tests) 
78113802 2018 037 21:00 2 6.03 RECEIVER New amplitude of the start pulse for EKSPLA laser. New value is -2.5V (100% of power) 
78113802 2017 349 12:00 2 12.03.02 METEO New humidity sensor has been installed BOSCH 280 
78113802 2017 349 12:00 2 12.02.02 METEO New temperature sensor has been installed BOSCH 280 
78113802 2017 349 12:00 2 12.01.02 METEO New pressure sensor has been installed BOSCH 280 
78113802 2017 341 16:00 0 4.03 TELESCOPE Position correction of the axes of the main telescope 
78113802 2017 172 20:00 0 4.03 TELESCOPE Stepper motors exchanged in the the control unit responsible for steering of the laser beam during the observations 
78113802 2017 158 16:00 0 4.03 TELESCOPE Cleaning of the mirrors of the main telescope (primary/secondary) 
78113802 2017 149 18:00 2 4.03 TELESCOPE Observation filter change from 1 to 3 
78113802 2017 145 18:00 2 6.03 RECEIVER New start pulse for STANFORD counter from -0.4V to -0.3V. Additionally, autocalibration of the counter 
78113802 2017 138 16:00 0 5.03 LASER Adjustment of the laser beam (EKSPLA module) 
78113802 2017 117 11:00 0 4.03 TELESCOPE New mounting of the lense in the transmitter tube of the main telescope 
78113802 2017 114 14:00 0 4.03 COUDE Coude path positioning for EKSLPA and CONTINUUM lasers 
78113802 2017 081 12:00 0 99 SYSTEM New control unit responsible for steering of the laser beam during the observations 
78113802 2017 062 16:00 1 8.03 CALIBRATION Painting of the external target (black coatting) 
78113802 2016 314 12:00 0 99 COMPUTER New MASTER computer: Compaq, RAM 32GB, Pentium Celeron 333MHz, 4.7GB 33MHz, ISA 10MB, PC ISA DB25 
78113802 2016 238 12:00 0 4.03 COUDE Exchanged of the damaged dielectric mirror in the coude path 
78113802 2016 211 10:00 0 6.03 RECEIVER New position of the fiberlink of the Si photodiode FDS025 
78113802 2016 208 14:00 0 4.03 COUDE Coude path positioning for EKSLPA and CONTINUUM lasers 
78113802 2015 168 20:00 0 99 SOFTWARE FRD and NPT data format correction, 0 and 1 index for line H4, respectively 
78113802 2015 126 14:00 3 99 ELECTRONICS Time-lock in gate generator switch from T0 to CD (negated) - all results much better, definitely (LEO only) 
78113802 2015 103 14:00 3 5.03 LASER Switch on external synchronization of EKSPLA PL-2250 laser 
78113802 2015 086 18:00 2 99 ELECTRONICS Gate generator input set to 1.0 V, moment of the laser shot set to D gate generator output  
78113802 2015 061 17:00 3 5.03 LASER First observations with EKSPLA PL-2250 laser 
78113802 2015 055 14:00 0 4.03 TELESCOPE Coude mirrors aligned for EKSPLA PL-2250 laser 
78113802 2015 049 16:00 0 99 COMPUTER New serial ribbon for MASTER and SLAVE 
78113802 2015 042 16:00 0 99 COMPUTER New MASTER computer: Award Medallion BIOS v6.0, ASUS CUV4X ACPI BIOS Revision 1006, Intel(R) Pentium(R) III 1000 MHz, 768 MB 
78113802 2015 019 20:00 0 4.03 TELESCOPE Two lenses mounting (on the telescope tube and movable lens inside the tube) 
78113802 2015 015 20:00 0 99 ELECTRONICS Gate generator tests, calibration tests for Continuum SureliteIII laser 
78113802 2015 007 17:00 0 5.03 LASER EKSPLA PL-2250 laser service 
78113802 2014 302 18:00 2 8.03 CALIBRTION New position determination for target and telescope mount  
78113802 2014 287 15:00 1 8.03 CALIBRATION Powder coating of the target, installation of refreshed target 
78113802 2014 282 20:00 0 99 SOFTWARE Delay changing in calibration program (from 50 to 10) 
78113802 2014 281 20:00 0 4.03 TELESCOPE Calibration tests, filters selection 
78113802 2014 274 14:00 0 4.03 COUDE Coude path positioning (for EKSLPA laser only)  
78113802 2014 273 13:00 0 4.03 COUDE Position corrections of the last mirror in Coude path  
78113802 2014 269 11:00 0 4.03 COUDE Re-mounting of stands and mirrors  
78113802 2014 268 12:00 0 4.03 COUDE Milling of all stands for Coude mirrors (without the first mirror)  
78113802 2014 265 14:00 2 6.01.03 RECEIVER Installation of high speed start Si photodiode FDS025 working in a range from 400 to 1100 nm 
78113802 2014 234 18:00 0 8.03 TARGET Diode illumination installation for refreshed target 
78113802 2014 217 15:00 0 4.03 COUDE Milling of stands for dielectric mirrors of Coude path. Installation all mirrors (5 pieces) in Coude path 
78113802 2014 216 13:00 1 5.02.02 LASER Correction parameters of EKSPLA PL-2250 laser 
78113802 2014 213 13:00 2 8.03 TARGET Welding of target because of many furrows 
78113802 2014 212 11:00 2 8.02 TARGET Old target removed for refreshing 
78113802 2014 203 23:00 3 4.03 TELESCOPE A new optics was replaced in the receiving telescope including primary and secondary mirrors of the telescope 
78113802 2014 021 16:00 3 5.02.02 LASER Installation of new EKSPLA PL-2250 laser (primary laser) 
78113802 2013 361 16:00 3 5.02.01 LASER Installation of new Continuum SureliteIII laser (secondary laser) 
78113802 2013 352 12:00 0 5.02 LASER Installation of optical table for two lasers (EKSPLA PL-2250 and Continuum SureliteIII)