ASTROSAT CZTI

Data Quality Report

Orbit 19231

Creation date: 2024-06-27T18:00:15.749426
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/AS1A05_007T06_9000002844_19231cztM0_level2.evt modeM0/AS1A05_007T06_9000002844_19231cztM0_level2_quad_clean.evt
Size (bytes)277,721,28048,720,960
Size264.9 MB 46.5 MB
Events in quadrant A1,870,969298,670
Events in quadrant B1,921,995303,026
Events in quadrant C2,436,238290,776
Events in quadrant D1,896,302288,185

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084050
B084310
C098870
D086280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A418030.071770%
B418100.000000%
C4181150.358766%
D4181190.454437%

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 4180 4180 2 2 0.05% 0.05%
B 4181 4181 0 0 0.00% 0.00%
C 4181 4181 1 1 0.02% 0.02%
D 4181 4181 14 14 0.33% 0.33%

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 9 143 6872 65.18 483 471 98.2
A 13 254 5025 46.37 483 471 98.2
A 0 226 4172 37.69 483 471 98.2
B 0 229 16932 176.87 480 467 93.1
B 0 183 11356 116.97 480 467 93.1
B 12 111 11287 116.23 480 467 93.1
C 3 233 559068 5161.28 462 465 108.2
C 14 238 72327 663.98 462 465 108.2
C 13 61 3254 25.77 462 465 108.2
D 11 176 74707 649.67 470 456 114.3
D 2 234 18060 154.03 470 456 114.3
D 12 16 16297 138.6 470 456 114.3

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