ASTROSAT CZTI

Data Quality Report

Orbit 10570

Creation date: 2024-06-27T16:00:57.143417
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_004T01_9000001532_10570cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10570cztM0_level2_quad_clean.evt
Size (bytes)863,663,040151,611,840
Size823.7 MB 144.6 MB
Events in quadrant A5,574,144924,601
Events in quadrant B7,038,700945,511
Events in quadrant C5,494,918965,322
Events in quadrant D7,219,952910,264

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026116996
B0304311067
C0262251045
D0309101075

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025810
B02584
C02588
D025812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A122332482.027303%
B122314994.079797%
C122121090.892565%
D122071751.433604%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 13200 12572 0 0 0.00% 0.00%
B 13200 12546 126 126 0.95% 1.00%
C 13200 12568 5 5 0.04% 0.04%
D 13200 12560 16 16 0.12% 0.13%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 251 57352 193.2 1421 1388 289.7
A 1 162 25629 83.68 1421 1388 289.7
A 0 226 12827 39.49 1421 1388 289.7
B 4 239 1372873 5018.14 1417 1378 273.3
B 0 214 42178 149.28 1417 1378 273.3
B 11 51 36300 127.78 1417 1378 273.3
C 14 234 77353 235.53 1387 1389 322.5
C 13 61 10303 27.64 1387 1389 322.5
C 8 128 5005 11.21 1387 1389 322.5
D 2 16 1265601 3823.73 1377 1338 330.6
D 8 195 521177 1572.24 1377 1338 330.6
D 13 104 71662 212.69 1377 1338 330.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter