ASTROSAT CZTI

Data Quality Report

Orbit 23353

Creation date: 2024-06-27T18:53:10.442139
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/AS1A07_135T02_9000003450_23353cztM0_level2.evt modeM0/AS1A07_135T02_9000003450_23353cztM0_level2_quad_clean.evt
Size (bytes)616,429,44082,759,680
Size587.9 MB 78.9 MB
Events in quadrant A3,441,189501,729
Events in quadrant B3,541,787510,180
Events in quadrant C5,548,020501,100
Events in quadrant D5,646,183488,524

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015207340
B015417330
C021627371
D022018380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01526
B01524
C01526
D01522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7241570.787184%
B7250861.186207%
C725981311.199890%
D72395497.583920%

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 7702 7313 0 0 0.00% 0.00%
B 7727 7317 6 6 0.08% 0.08%
C 7707 7327 373 373 4.84% 5.09%
D 7709 7307 376 376 4.88% 5.15%

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 13 254 11789 60.05 892 872 181.8
A 3 137 8053 39.5 892 872 181.8
A 0 226 7802 38.12 892 872 181.8
B 0 190 30229 169.62 885 861 173.1
B 0 189 21783 120.84 885 861 173.1
B 12 111 21015 116.4 885 861 173.1
C 0 239 2034369 10387.05 831 835 195.8
C 14 238 130798 663.84 831 835 195.8
C 0 207 64539 325.39 831 835 195.8
D 1 52 1751688 8415.39 849 824 208.1
D 12 227 233153 1116.67 849 824 208.1
D 13 249 139017 664.21 849 824 208.1

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