ASTROSAT CZTI

Data Quality Report

Orbit 47324

Creation date: 2024-06-29T00:11:35.369318
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/AS1A13_093T23_9000006316_47324cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47324cztM0_level2_quad_clean.evt
Size (bytes)1,581,793,920311,840,640
Size1.5 GB 297.4 MB
Events in quadrant A20,912,2781,999,516
Events in quadrant B9,034,2862,199,988
Events in quadrant C9,120,7662,105,133
Events in quadrant D18,053,3631,856,565

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03760
B03760
C03760
D03760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0759363
B0396023
C0406813
D0664473

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1857813937.498116%
B185783912.104640%
C185793091.663168%
D1857916448.848700%

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 19578 18581 451 451 2.30% 2.43%
B 19578 18581 17 17 0.09% 0.09%
C 19579 18582 112 112 0.57% 0.60%
D 19579 18582 1630 1630 8.33% 8.77%

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 9552730 21060.25 2194 2150 453.5
A 9 191 1808826 3983.95 2194 2150 453.5
A 15 235 972430 2139.59 2194 2150 453.5
B 0 198 121735 274.42 2180 2110 435.9
B 5 32 57031 125.99 2180 2110 435.9
B 5 171 54828 120.93 2180 2110 435.9
C 12 2 603669 1190.63 2134 2145 505.2
C 3 233 120193 233.66 2134 2145 505.2
C 14 254 28307 51.78 2134 2145 505.2
D 6 112 8047994 14537.11 2144 2074 553.5
D 10 204 531049 955.73 2144 2074 553.5
D 7 38 203205 363.4 2144 2074 553.5

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