<<<<< b24146 >>>>> <<< b24146 >>> DACH, Matthias Schartner(1), Christian Ploetz(2), (1) ETH Zurich, Switzerland (2) Geodatisches Observatorium Wettzell, Germany Date of experiment: 2024,May,25 Nominal Start Time: 05h30 UT Nominal End Time: 06h30 UT Duration: 1.0 hr Correlator: GSI Participating stations: (3) ISHIOKA Is ONSA13NE Oe ONSA13SW Ow scheduler: VieSched++ AUTO Contact ======= DACH oc.dach@bkg.bund.de Matthias Schartner (1) mschartner@ethz.ch Christian Ploetz (2) christian.ploetz@bkg.bund.de Notes: =========================================================== This is an automatically generated schedule The template was generated by Matthias Schartner Purpose ======= The project aims to determine dUT1 on a VGOS baseline Station down times: none Tagalong mode used: none =========================================================== Session Notes for session: b24146 =========================================================== Experiment: b24146 Description: b24146 Scheduler: DACH Correlator: GSI Start: 2024-146-05:30:00 End: 2024-146-06:30:00 Current yyyyddd: 2024146 (2024.40) ( 60455 MJD, SAT. 25MAY.) =========================================================== Software: VieSched++ Version: c8b0f87 GUI: VieSched++ Version: b64510b scheduler: VieSched++ AUTO mail: oc.dach@bkg.bund.de =========================================================== First observations Observation listing from file b24146.skd for experiment b24146 Source Start DURATIONS name yyddd-hhmmss Is Oe Ow CTA26 24146-053000| 10 10 10 Last observations 1044+719 24146-062940| 10 10 10 =========================================================== Calibrator scans Observation listing from file b24146.skd for experiment b24146 Source Start DURATIONS name yyddd-hhmmss Is Oe Ow 0552+398 24146-054000| 60 60 60 0059+581 24146-062000| 60 60 60 ----------------------------------------------------------- total| 2 2 2 =========================================================== Schedule was created using multi scheduling tool version 146 focus corner switch cadence 450 [s] weight sky-coverage 0 weight low declination 0 weight low elevation 0 =========================================================== Key: Is=ISHIOKA Oe=ONSA13NE Ow=ONSA13SW Is Oe Ow Avg % obs. time: 39.58 39.58 39.58 39.58 % cal. time: 12.67 12.67 12.67 12.67 % slew time: 46.94 22.44 22.44 30.61 % idle time: 0.53 25.03 25.03 16.86 % field system: 0.00 0.00 0.00 0.00 total # scans: 115 115 115 115 # scans/hour: 115.00 115.00 115.00 115.00 total # obs: 230 115 115 153 # obs/hour: 230.00 115.00 115.00 153.33 Avg scan (sec): 12.39 12.39 12.39 12.39 Total TB: 1.46 1.46 1.46 1.46 # OF OBSERVATIONS BY BASELINE | Is Oe Ow Total -------------------------- Is| 115 115 230 Oe| 0 115 Ow| 115 Number of 2-station scans: 0 ( 0.00 %) Number of 3-station scans: 115 (100.00 %) Total number of scans: 115 Total number of obs: 230 Total integrated obs-time: 2850 Average obs-time: 12.4 =========================================================== Simple observing mode used! ================================================================================================================================================ ADDITONAL NOTES FOR SCHEDULER ================================================================================================================================================ number of scheduled observations: 230 of 345 -> 115 (33.33 [%]) observations not optimized for SNR #scans #obs --------------------------------- total 115 230 --------------------------------- single source 115 230 subnetting 0 0 --------------------------------- standard 113 226 fillin mode 0 0 calibrator 2 4 weight factors: duration: 1 sky coverage score (1 means perfect distribution) .-------------------------------------------------------------. | | ISHIOKA ONSA13NE ONSA13SW | average | |-------------------|------------------------------|----------| | 13 areas @ 8 min | 0.53 0.51 0.51 | 0.52 | | 25 areas @ 8 min | 0.42 0.39 0.39 | 0.40 | | 37 areas @ 8 min | 0.31 0.31 0.31 | 0.31 | |-------------------------------------------------------------| | 13 areas @ 15 min | 0.64 0.63 0.63 | 0.63 | | 25 areas @ 15 min | 0.58 0.55 0.55 | 0.56 | | 37 areas @ 15 min | 0.45 0.44 0.44 | 0.44 | |-------------------------------------------------------------| | 13 areas @ 30 min | 0.67 0.65 0.65 | 0.66 | | 25 areas @ 30 min | 0.63 0.60 0.60 | 0.61 | | 37 areas @ 30 min | 0.51 0.51 0.51 | 0.51 | |-------------------------------------------------------------| | 13 areas @ 60 min | 0.69 0.65 0.65 | 0.67 | | 25 areas @ 60 min | 0.64 0.62 0.62 | 0.63 | | 37 areas @ 60 min | 0.57 0.54 0.54 | 0.55 | '-------------------------------------------------------------' number of scans per 15 minutes: #scans -> char: 1-9 -> '1'-'9'; 10 -> '0'; 11-36 -> 'A'-'Z'; 37-62 -> 'a'-'z'; 63+ -> '#' .-----------------------------------------------------------------------------------------------------------------------------------------. | time since session start (1 char equals 15 minutes) | #SCANS #OBS | OBS Time [s] | | STATION |0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | | sum average | |---------|+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---|-------------|----------------| | ISHIOKA|TTRQ | 115 230 | 1425 12.4 | | ONSA13NE|TTRQ | 115 115 | 1425 12.4 | | ONSA13SW|TTRQ | 115 115 | 1425 12.4 | '-----------------------------------------------------------------------------------------------------------------------------------------' number of available sources: 199 number of scheduled sources: 48 number of scans per 15 minutes: #scans -> char: 1-9 -> '1'-'9'; 10 -> '0'; 11-36 -> 'A'-'Z'; 37-62 -> 'a'-'z'; 63+ -> '#' .-----------------------------------------------------------------------------------------------------------------------------------------------------. | time since session start (1 char equals 15 minutes) | #SCANS #OBS | OBS Time [s] | independ | | SOURCE |0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | | sum average | closures | |----------|+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---|-------------|----------------|----------| | 0059+581 |11 2 | 4 8 | 90 22.5 | 4 | | 0119+115 | 1 | 1 2 | 10 10.0 | 1 | | 0123+257 | 1 | 1 2 | 13 13.0 | 1 | | 0133+476 |1 1 | 2 4 | 20 10.0 | 2 | | 0149+218 | 11 | 2 4 | 46 23.0 | 2 | | 0202+319 |1 11 | 3 6 | 30 10.0 | 3 | | 0215+015 |1 1 | 2 4 | 38 19.0 | 2 | | 4C67.05 |11 1 | 3 6 | 30 10.0 | 3 | | 0229+131 |11 1 | 3 6 | 30 10.0 | 3 | | 0234+285 |1 11 | 3 6 | 30 10.0 | 3 | | 0235+164 | 111 | 3 6 | 30 10.0 | 3 | | 0237-027 |111 | 3 6 | 42 14.0 | 3 | | 0300+470 |1 11 | 3 6 | 30 10.0 | 3 | | 0322+222 | 1 1 | 2 4 | 22 11.0 | 2 | | CTA26 |11 1 | 3 6 | 33 11.0 | 3 | | 0420-014 | 1 | 1 2 | 10 10.0 | 1 | | 0446+112 | 111 | 3 6 | 30 10.0 | 3 | | 0528+134 | 11 | 2 4 | 20 10.0 | 2 | | 0536+145 | 1 | 1 2 | 30 30.0 | 1 | | 0552+398 |1 1 | 2 4 | 70 35.0 | 2 | | 0602+405 |1 1 | 2 4 | 20 10.0 | 2 | | 0602+673 | 1 | 1 2 | 13 13.0 | 1 | | 0642+449 |1 1 | 2 4 | 20 10.0 | 2 | | 0716+714 |11 1 | 3 6 | 30 10.0 | 3 | | 0718+793 |11 | 2 4 | 23 11.5 | 2 | | 0805+410 | 11 | 2 4 | 20 10.0 | 2 | | 0814+425 | 11 | 2 4 | 20 10.0 | 2 | | 0917+449 |111 | 3 6 | 30 10.0 | 3 | | 0917+624 |11 | 2 4 | 20 10.0 | 2 | | 4C39.25 | 11 | 2 4 | 20 10.0 | 2 | | 0954+658 |1111 | 4 8 | 40 10.0 | 4 | | 0955+476 |111 | 3 6 | 30 10.0 | 3 | | 1030+415 | 11 | 2 4 | 20 10.0 | 2 | | 1039+811 |111 | 3 6 | 30 10.0 | 3 | | 1044+719 |1111 | 4 8 | 40 10.0 | 4 | | 1053+704 | 1 | 1 2 | 14 14.0 | 1 | | 1144+402 |1 | 1 2 | 10 10.0 | 1 | | 1417+385 |111 | 3 6 | 86 28.7 | 3 | | 1504+377 | 111 | 3 6 | 33 11.0 | 3 | | 1637+574 |1111 | 4 8 | 40 10.0 | 4 | | NGC6251 | 1 | 1 2 | 28 28.0 | 1 | | 1642+690 |1111 | 4 8 | 40 10.0 | 4 | | 1803+784 |111 | 3 6 | 30 10.0 | 3 | | 3C371 |11 1 | 3 6 | 30 10.0 | 3 | | 1823+568 | 1 | 1 2 | 10 10.0 | 1 | | 1849+670 |1 1 | 2 4 | 24 12.0 | 2 | | 2007+777 |11 1 | 3 6 | 30 10.0 | 3 | | 2229+695 |1 1 | 2 4 | 20 10.0 | 2 | '-----------------------------------------------------------------------------------------------------------------------------------------------------' number of scans per 15 minutes: #scans -> char: 1-9 -> '1'-'9'; 10 -> '0'; 11-36 -> 'A'-'Z'; 37-62 -> 'a'-'z'; 63+ -> '#' .-----------------------------------------------------------------------------------------------------------------------------------. | time since session start (1 char equals 15 minutes) | #OBS | OBS Time [s] | | BASELINE |0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | | sum average | |----------|+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---|------|----------------| | Is-Oe |TTRQ | 115 | 1425 12.4 | | Is-Ow |TTRQ | 115 | 1425 12.4 | | Oe-Ow | | 0 | 0 -nan | '-----------------------------------------------------------------------------------------------------------------------------------' .------------------------------------------. | ID | dist | time | dist | time | | | [deg] | [s] | type | type | |------------------------------------------| | A | 30.00 | 3600 | cosine | cosine | <-- ISHIOKA | B | 30.00 | 3600 | cosine | cosine | <-- ONSA13NE | C | 30.00 | 3600 | cosine | cosine | <-- ONSA13SW '------------------------------------------' Simple observing mode used! band: A all stations: recording rate 2048.00 [Mbit/s] with efficiency factor 0.6063 band: B all stations: recording rate 2048.00 [Mbit/s] with efficiency factor 0.6063 band: C all stations: recording rate 2048.00 [Mbit/s] with efficiency factor 0.6063 band: D all stations: recording rate 2048.00 [Mbit/s] with efficiency factor 0.6063 average theoretical SNR for A-band per baseline: .----------------------------------------------------. | STATIONS | ISHIOKA ONSA13NE ONSA13SW | AVERAGE | |----------|------------------------------|----------| | ISHIOKA | 28.89 31.20 | 30.05 | | ONSA13NE | - | 28.89 | | ONSA13SW | | 31.20 | '----------------------------------------------------' average theoretical SNR for B-band per baseline: .----------------------------------------------------. | STATIONS | ISHIOKA ONSA13NE ONSA13SW | AVERAGE | |----------|------------------------------|----------| | ISHIOKA | 33.74 34.78 | 34.26 | | ONSA13NE | - | 33.74 | | ONSA13SW | | 34.78 | '----------------------------------------------------' average theoretical SNR for C-band per baseline: .----------------------------------------------------. | STATIONS | ISHIOKA ONSA13NE ONSA13SW | AVERAGE | |----------|------------------------------|----------| | ISHIOKA | 35.08 36.23 | 35.65 | | ONSA13NE | - | 35.08 | | ONSA13SW | | 36.23 | '----------------------------------------------------' average theoretical SNR for D-band per baseline: .----------------------------------------------------. | STATIONS | ISHIOKA ONSA13NE ONSA13SW | AVERAGE | |----------|------------------------------|----------| | ISHIOKA | 30.17 35.37 | 32.77 | | ONSA13NE | - | 30.17 | | ONSA13SW | | 35.37 | '----------------------------------------------------' scan observing durations: scan duration: 0- 9 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 10- 19 | +++++++++++++++++ 20- 29 | ++++++ 30- 39 | 40- 49 | 50- 59 | ++ 60- 69 | scheduled scan length: .-----------------------------------------------------------------------------------. | S1-S2 | min 10% 50% 90% 95% 97.5% 99% max | sum average | |-------|---------------------------------------------------------|-----------------| | ALL | 10 10 10 14 28 29 30 60 | 1425 12.4 | |-------|---------------------------------------------------------|-----------------| | Is-Oe | 10 10 10 14 28 29 30 60 | 1425 12.4 | | Is-Ow | 10 10 10 14 28 29 30 60 | 1425 12.4 | '-----------------------------------------------------------------------------------' First Scans: .----------------------------------------------------------------------------------------------------------------------------------------------. | scan: no0000 (id: 584880) duration: 05:30:00 - 05:30:10 | | source: CTA26 (id: 29) type: target single source scan (753.21) | |----------------------------------------------------------------------------------------------------------------------------------------------| | station | delay | slew | idle | preob | obs | duration | az [deg] | unaz [deg] | el [deg] | | | [s] | [s] | [s] | [s] | [s] | start - end | start - end | start - end | start - end | |--------------|-------|-------|-------|-------|-------|---------------------|---------------------|-----------------------|-------------------| | ISHIOKA | 0 | 0 | 0 | 0 | 10 | 05:30:00 - 05:30:10 | 242.8845 - 242.9178 | 242.8845 - 242.9178 | 29.4633 - 29.4333 | (id: 5995079 and 6000274) | ONSA13NE | 0 | 0 | 0 | 0 | 10 | 05:30:00 - 05:30:10 | 101.5108 - 101.5464 | 101.5108 - 101.5464 | 5.2748 - 5.2969 | (id: 5995081 and 6000297) | ONSA13SW | 0 | 0 | 0 | 0 | 10 | 05:30:00 - 05:30:10 | 101.5101 - 101.5457 | 101.5101 - 101.5457 | 5.2745 - 5.2965 | (id: 5995083 and 6000312) | ignore observations: Oe-Ow | |----------------------------------------------------------------------------------------------------------------------------------------------| | scan: no0001 (id: 585509) duration: 05:30:28 - 05:30:42 | | source: 0237-027 (id: 24) type: target single source scan (753.47) | |----------------------------------------------------------------------------------------------------------------------------------------------| | ISHIOKA | 0 | 14 | 0 | 4 | 14 | 05:30:28 - 05:30:42 | 253.1661 - 253.2050 | 253.1661 - 253.2050 | 17.6854 - 17.6402 | (id: 6001675 and 6020782) | ONSA13NE | 0 | 6 | 8 | 4 | 14 | 05:30:28 - 05:30:42 | 115.0085 - 115.0607 | 115.0085 - 115.0607 | 12.2972 - 12.3258 | (id: 6001681 and 6020802) | ONSA13SW | 0 | 6 | 8 | 4 | 14 | 05:30:28 - 05:30:42 | 115.0077 - 115.0599 | 115.0077 - 115.0599 | 12.2970 - 12.3256 | (id: 6001686 and 6020822) | ignore observations: Oe-Ow | |----------------------------------------------------------------------------------------------------------------------------------------------| | scan: no0002 (id: 586100) duration: 05:30:58 - 05:31:17 | | source: 0215+015 (id: 19) type: target single source scan (550.70) | |----------------------------------------------------------------------------------------------------------------------------------------------| | ISHIOKA | 0 | 12 | 0 | 4 | 19 | 05:30:58 - 05:31:17 | 260.3459 - 260.3959 | 260.3459 - 260.3959 | 15.9693 - 15.9061 | (id: 6021872 and 6027076) | ONSA13NE | 0 | 5 | 7 | 4 | 19 | 05:30:58 - 05:31:17 | 117.9347 - 118.0084 | 117.9347 - 118.0084 | 18.7956 - 18.8334 | (id: 6021876 and 6027097) | ONSA13SW | 0 | 5 | 7 | 4 | 19 | 05:30:58 - 05:31:17 | 117.9338 - 118.0075 | 117.9338 - 118.0075 | 18.7955 - 18.8332 | (id: 6021882 and 6027116) | ignore observations: Oe-Ow | |----------------------------------------------------------------------------------------------------------------------------------------------| Last Scans: .----------------------------------------------------------------------------------------------------------------------------------------------. | scan: no0112 (id: 668504) duration: 06:28:45 - 06:28:55 | | source: 0716+714 (id: 61) type: target single source scan (1.00) | |----------------------------------------------------------------------------------------------------------------------------------------------| | ISHIOKA | 0 | 17 | 0 | 4 | 10 | 06:28:45 - 06:28:55 | 354.7138 - 354.6914 | 354.7138 - 354.6914 | 54.5492 - 54.5461 | (id: 6611846 and 6615339) | ONSA13NE | 0 | 9 | 8 | 4 | 10 | 06:28:45 - 06:28:55 | 23.7149 - 23.7290 | 23.7149 - 23.7290 | 45.6392 - 45.6483 | (id: 6611847 and 6615352) | ONSA13SW | 0 | 9 | 8 | 4 | 10 | 06:28:45 - 06:28:55 | 23.7144 - 23.7285 | 23.7144 - 23.7285 | 45.6386 - 45.6476 | (id: 6611850 and 6615360) | ignore observations: Oe-Ow | |----------------------------------------------------------------------------------------------------------------------------------------------| | scan: no0113 (id: 669196) duration: 06:29:13 - 06:29:23 | | source: 0954+658 (id: 90) type: target single source scan (1.00) | |----------------------------------------------------------------------------------------------------------------------------------------------| | ISHIOKA | 0 | 14 | 0 | 4 | 10 | 06:29:13 - 06:29:23 | 21.3562 - 21.3342 | 381.3562 - 381.3342 | 56.0637 - 56.0760 | (id: 6617588 and 6620694) | ONSA13NE | 0 | 6 | 8 | 4 | 10 | 06:29:13 - 06:29:23 | 11.0095 - 11.0298 | 11.0095 - 11.0298 | 34.0072 - 34.0115 | (id: 6617590 and 6620716) | ONSA13SW | 0 | 6 | 8 | 4 | 10 | 06:29:13 - 06:29:23 | 11.0090 - 11.0293 | 11.0090 - 11.0293 | 34.0066 - 34.0109 | (id: 6617593 and 6620738) | ignore observations: Oe-Ow | |----------------------------------------------------------------------------------------------------------------------------------------------| | scan: no0114 (id: 669799) duration: 06:29:40 - 06:29:50 | | source: 1044+719 (id: 98) type: target single source scan (1.00) | |----------------------------------------------------------------------------------------------------------------------------------------------| | ISHIOKA | 0 | 13 | 0 | 4 | 10 | 06:29:40 - 06:29:50 | 18.4962 - 18.4845 | 378.4962 - 378.4845 | 48.6776 - 48.6883 | (id: 6622717 and 6625334) | ONSA13NE | 0 | 5 | 8 | 4 | 10 | 06:29:40 - 06:29:50 | 4.1007 - 4.1176 | 4.1007 - 4.1176 | 39.1920 - 39.1936 | (id: 6622719 and 6625356) | ONSA13SW | 0 | 5 | 8 | 4 | 10 | 06:29:40 - 06:29:50 | 4.1004 - 4.1172 | 4.1004 - 4.1172 | 39.1915 - 39.1931 | (id: 6622724 and 6625382) | ignore observations: Oe-Ow | |----------------------------------------------------------------------------------------------------------------------------------------------| .------------------------------------------. | sun position: | earth velocity: | |----------------------|-------------------| | RA: 04h 10m 20.22s | x: 26331 [m/s] | | DEC: +21 02' 46.28" | y: -12011 [m/s] | | | z: -5207 [m/s] | '------------------------------------------' .--------------------------------------------------------------------. | earth nutation: | | time | X Y S | |---------------------|----------------------------------------------| | 2024.05.25 05:30:00 | +2.361122e-03 +3.429123e-05 -4.371739e-08 | | 2024.05.25 06:30:00 | +2.361146e-03 +3.428599e-05 -4.371078e-08 | | 2024.05.25 07:30:00 | +2.361169e-03 +3.428096e-05 -4.370441e-08 | '--------------------------------------------------------------------' ================================================================================================================================================ FULL SCHEDULING SETUP ================================================================================================================================================ Can be used to recreate schedule: VieSched++ GUI b64510b4dfa3dfe53aaf243e1315c0d36158bbae VieSched++ AUTO oc.dach@bkg.bund.de b24146 2024.05.25 05:30:00 2024.05.25 06:30:00 true 150 1 true true false __all__ start error info true ISHIOKA ONSA13NE ONSA13SW b24146 DACH GSI DACH oc.dach@bkg.bund.de Matthias Schartner mschartner@ethz.ch ETH Zurich, Switzerland Christian Ploetz christian.ploetz@bkg.bund.de Geodatisches Observatorium Wettzell, Germany This is an automatically generated schedule\nThe template was generated by Matthias Schartner\n\nPurpose\n=======\nThe project aims to determine dUT1 on a VGOS baseline true true false true true true false true false false /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/antenna.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/Templates/VGOS-INT-B/equip.cat.VGOS /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/flux.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/freq.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/hdpos.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/loif.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/mask.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/modes.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/position.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/rec.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/rx.cat /home/schartner/VieSchedpp/VieSchedpp_AUTO/Templates/VGOS-INT-B/source.cat.vgosb /home/schartner/VieSchedpp/VieSchedpp_AUTO/CATALOGS/tracks.cat __all__ default hard 1 1 1 10 30 0 600 175 0 600 5 9999 999999 4 0 0 0 1 5 5 0 0 __all__ default hard 1 1 1 0 4 3 900 0.15 999 1 0355+508 0552+398 0059+581 __all__ default hard Oe-Ow ignore hard 0 0 9999 1 1 30 3600 0 cosine cosine 1 1 1 15 0 1 25 15 900 2 0.29999999999999999 0.25 0.20000000000000001 0 0.02 0.040000000000000001 0.059999999999999998 0.080000000000000002 0.10000000000000001 0.12 0.14000000000000001 0.16 0.17999999999999999 0 0.33000000000000002 0.67000000000000004 1 0 0.33000000000000002 0.67000000000000004 1 300 450 600 auto auto 1024 2 0.60629999999999995 0.092062540842648311 1 0.054543420784513498 1 0.045310509944985186 1 0.028670714395011666 1 12 required 0 optional 12 required 0 optional 12 required 0 optional 12 required 0 optional 600 1 60 calib 3000 1 60 calib 1000 2.83 1 50 1.8 2000 200 2 8 0 150 6 0.0001 ISHIOKA false false true false 300 1.5 3 5 25 __none__ __all__ 70 0.75 1 0 0 1.2 0 0 0 0 0