ASTROSAT CZTI

Data Quality Report

Orbit 02605

Creation date: 2024-06-27T14:20:02.755605
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/AS1P01_010T01_9000000388_02605cztM0_level2.evt modeM0/AS1P01_010T01_9000000388_02605cztM0_level2_quad_clean.evt
Size (bytes)169,286,40046,702,080
Size161.4 MB 44.5 MB
Events in quadrant A1,231,605310,338
Events in quadrant B1,241,999317,778
Events in quadrant C1,311,544300,795
Events in quadrant D1,156,120292,383

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055410
B055170
C058430
D054960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A269060.223048%
B269060.223048%
C269070.260223%
D269030.111524%

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 2690 2690 0 0 0.00% 0.00%
B 2690 2690 3 3 0.11% 0.11%
C 2690 2690 2 2 0.07% 0.07%
D 2690 2690 0 0 0.00% 0.00%

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 3 1 43176 675.98 308 301 63.4
A 0 226 3241 46.35 308 301 63.4
A 12 194 3196 45.64 308 301 63.4
B 10 244 20148 334.19 315 307 59.4
B 0 189 8477 137.61 315 307 59.4
B 12 111 4265 66.67 315 307 59.4
C 2 53 90113 1261.01 304 305 71.2
C 10 82 21785 301.6 304 305 71.2
C 10 34 8150 110.15 304 305 71.2
D 2 14 15442 215.92 294 287 70.2
D 7 67 11575 160.83 294 287 70.2
D 15 194 5406 72.93 294 287 70.2

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
Veto Counter