ASTROSAT CZTI

Data Quality Report

Orbit 07108

Creation date: 2024-06-27T15:15:41.252467
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/AS1A02_090T01_9000000970_07108cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07108cztM0_level2_quad_clean.evt
Size (bytes)193,878,72029,557,440
Size184.9 MB 28.2 MB
Events in quadrant A1,352,795179,615
Events in quadrant B1,390,812181,943
Events in quadrant C1,342,187178,549
Events in quadrant D1,608,684169,655

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0565939
B0572457
C0569657
D0653744

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0562
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25741254.856255%
B25651315.107212%
C2565863.352827%
D25721013.926905%

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 3683 2591 4 4 0.11% 0.15%
B 3682 2588 0 0 0.00% 0.00%
C 3683 2590 0 0 0.00% 0.00%
D 3683 2592 13 13 0.35% 0.50%

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 13 248 17052 229.81 345 336 72.7
A 14 111 3612 45.04 345 336 72.7
A 8 15 3262 40.23 345 336 72.7
B 0 219 11140 155.27 350 342 69.5
B 4 173 8198 112.97 350 342 69.5
B 12 111 6936 94.82 350 342 69.5
C 7 247 18735 228.63 337 339 80.5
C 10 22 2875 31.52 337 339 80.5
C 13 61 2582 27.88 337 339 80.5
D 12 212 107141 1272.1 334 324 84.0
D 12 227 93004 1103.74 334 324 84.0
D 8 195 84330 1000.44 334 324 84.0

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