| SOD | Year | Day of Year |
Time of Day |
Data Impact | System | Description |
|---|---|---|---|---|---|---|
| 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) |
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