ASTROSAT CZTI

Data Quality Report

Orbit 13314

Creation date: 2024-06-27T16:39:23.251768
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/AS1T02_014T01_9000001980_13314cztM0_level2.evt modeM0/AS1T02_014T01_9000001980_13314cztM0_level2_quad_clean.evt
Size (bytes)447,275,52098,219,520
Size426.6 MB 93.7 MB
Events in quadrant A3,487,051646,444
Events in quadrant B3,323,662657,508
Events in quadrant C3,039,016636,057
Events in quadrant D3,279,288606,151

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142792
B0136851
C0129171
D0137291

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6132570.929550%
B6132621.011089%
C6132430.701239%
D6132470.766471%

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 7348 6134 3 3 0.04% 0.05%
B 7348 6134 10 10 0.14% 0.16%
C 7348 6134 8 8 0.11% 0.13%
D 7348 6134 16 16 0.22% 0.26%

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 406005 2567.71 783 767 157.8
A 1 162 27747 170.95 783 767 157.8
A 9 143 15611 94.06 783 767 157.8
B 0 189 54799 368.89 785 768 146.5
B 4 173 47053 316.01 785 768 146.5
B 3 64 45961 308.55 785 768 146.5
C 15 208 68240 387.39 758 766 174.2
C 8 128 7711 39.87 758 766 174.2
C 13 61 5507 27.22 758 766 174.2
D 8 195 153025 840.63 755 736 181.2
D 2 136 92104 504.35 755 736 181.2
D 5 222 87585 479.4 755 736 181.2

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