ASTROSAT CZTI

Data Quality Report

Orbit 28240

Creation date: 2024-06-27T19:49:32.152374
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_019T04_9000004074_28240cztM0_level2.evt modeM0/AS1C05_019T04_9000004074_28240cztM0_level2_quad_clean.evt
Size (bytes)495,469,440130,887,360
Size472.5 MB 124.8 MB
Events in quadrant A3,285,575891,071
Events in quadrant B3,309,046921,426
Events in quadrant C3,329,644873,367
Events in quadrant D4,640,004825,169

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139520
B0139650
C0140840
D0181120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6505370.568793%
B6505570.876249%
C6505881.352806%
D65052523.873943%

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 7820 6505 2 2 0.03% 0.03%
B 7820 6506 0 0 0.00% 0.00%
C 7820 6506 0 0 0.00% 0.00%
D 7820 6506 174 174 2.23% 2.67%

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 12 96 25564 148.94 839 824 166.1
A 6 16 24760 144.1 839 824 166.1
A 13 254 10433 57.85 839 824 166.1
B 12 111 18526 113.21 841 824 156.4
B 11 111 16907 102.86 841 824 156.4
B 14 111 16105 97.73 841 824 156.4
C 14 238 135084 721.61 810 817 186.1
C 3 233 32883 172.34 810 817 186.1
C 13 61 5604 25.73 810 817 186.1
D 1 52 1054848 5658.45 794 774 186.3
D 7 238 208310 1114.09 794 774 186.3
D 8 195 188910 1009.94 794 774 186.3

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