ASTROSAT CZTI

Data Quality Report

Orbit 43294

Creation date: 2024-06-27T22:50:15.697266
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/AS1A12_089T01_9000005864_43294cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43294cztM0_level2_quad_clean.evt
Size (bytes)961,107,840249,543,360
Size916.6 MB 238.0 MB
Events in quadrant A9,673,6771,648,306
Events in quadrant B8,135,9491,692,256
Events in quadrant C7,325,4021,648,357
Events in quadrant D9,234,1571,490,193

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0490
C0490
D0490

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03180
B03180
C03180
D03180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0384294
B0347125
C0318064
D0383284

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A155963011.929982%
B155952851.827509%
C15595160.102597%
D155953612.314845%

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 19804 15599 213 213 1.08% 1.37%
B 19803 15598 226 226 1.14% 1.45%
C 19803 15598 5 5 0.03% 0.03%
D 19803 15597 350 350 1.77% 2.24%

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 10 83 1630946 4662.08 1698 1668 349.5
A 15 237 976001 2788.0 1698 1668 349.5
A 12 189 301356 857.54 1698 1668 349.5
B 5 172 511401 1558.95 1696 1648 327.0
B 0 190 338058 1028.82 1696 1648 327.0
B 0 189 207754 630.32 1696 1648 327.0
C 15 214 649899 1658.31 1668 1679 390.9
C 3 233 78071 195.43 1668 1679 390.9
C 15 159 28772 69.31 1668 1679 390.9
D 1 52 1361960 3342.77 1647 1601 407.0
D 13 249 301451 736.81 1647 1601 407.0
D 2 249 287614 702.81 1647 1601 407.0

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