ASTROSAT CZTI

Data Quality Report

Orbit 13213

Creation date: 2024-06-27T16:37:56.220306
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/AS1A04_216T01_9000001968_13213cztM0_level2.evt modeM0/AS1A04_216T01_9000001968_13213cztM0_level2_quad_clean.evt
Size (bytes)435,144,96096,327,360
Size415.0 MB 91.9 MB
Events in quadrant A2,870,074641,918
Events in quadrant B3,400,258652,119
Events in quadrant C2,737,608635,507
Events in quadrant D3,766,136572,182

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124231
B0139530
C0121520
D0154060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5943140.235571%
B59431422.389366%
C594350.084133%
D59432714.559987%

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 7239 5945 1 1 0.01% 0.02%
B 7239 5945 89 89 1.23% 1.50%
C 7239 5945 0 0 0.00% 0.00%
D 7239 5945 214 214 2.96% 3.60%

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 8 15 45529 308.0 719 706 145.5
A 1 162 29711 199.31 719 706 145.5
A 1 178 9538 60.69 719 706 145.5
B 4 239 461268 3399.8 725 710 135.5
B 3 209 46761 339.94 725 710 135.5
B 0 189 15071 106.01 725 710 135.5
C 15 208 15744 94.56 696 702 159.1
C 14 234 6043 33.57 696 702 159.1
C 13 61 5209 28.33 696 702 159.1
D 13 122 759707 4770.39 666 647 159.1
D 1 52 319425 2003.39 666 647 159.1
D 9 85 59515 369.96 666 647 159.1

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