ASTROSAT CZTI

Data Quality Report

Orbit 22583

Creation date: 2024-06-27T18:43:07.523937
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/AS1C05_002T01_9000003352_22583cztM0_level2.evt modeM0/AS1C05_002T01_9000003352_22583cztM0_level2_quad_clean.evt
Size (bytes)91,321,9205,218,560
Size87.1 MB 5.0 MB
Events in quadrant A578,81417,092
Events in quadrant B608,22317,537
Events in quadrant C601,27517,094
Events in quadrant D893,61215,730

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023970
B024660
C024191
D034070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118710.084246%
B118740.336984%
C1186151.264755%
D1186635.311973%

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 1187 1187 0 0 0.00% 0.00%
B 1187 1187 0 0 0.00% 0.00%
C 1186 1186 0 0 0.00% 0.00%
D 1186 1186 61 61 5.14% 5.14%

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 13 254 2220 63.63 149 145 32.6
A 0 226 1294 35.24 149 145 32.6
A 3 137 1270 34.5 149 145 32.6
B 0 230 11914 381.21 150 147 30.9
B 0 190 5529 174.36 150 147 30.9
B 12 111 3429 106.32 150 147 30.9
C 14 238 23526 636.51 147 147 36.7
C 10 22 1824 45.66 147 147 36.7
C 13 61 1062 24.91 147 147 36.7
D 1 52 289844 7581.83 146 141 38.2
D 7 223 16113 418.0 146 141 38.2
D 13 172 11628 300.63 146 141 38.2

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