ASTROSAT CZTI

Data Quality Report

Orbit 19569

Creation date: 2024-06-27T18:04:18.542395
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/AS1T03_005T01_9000002908_19569cztM0_level2.evt modeM0/AS1T03_005T01_9000002908_19569cztM0_level2_quad_clean.evt
Size (bytes)501,122,88067,331,520
Size477.9 MB 64.2 MB
Events in quadrant A3,472,469407,822
Events in quadrant B3,588,007416,917
Events in quadrant C3,523,112384,617
Events in quadrant D4,150,341374,121

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140712
B0144652
C0141983
D0163902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6527881.348246%
B65271151.761912%
C6526961.471039%
D65261241.900092%

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 7827 6528 0 0 0.00% 0.00%
B 7827 6527 5 5 0.06% 0.08%
C 7826 6527 2 2 0.03% 0.03%
D 7826 6527 68 68 0.87% 1.04%

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 8885 44.17 900 885 181.1
A 0 226 7746 37.88 900 885 181.1
A 3 137 6799 32.66 900 885 181.1
B 7 220 34204 200.11 897 879 166.5
B 12 111 19716 113.11 897 879 166.5
B 11 111 17341 98.85 897 879 166.5
C 14 238 134317 689.6 842 851 193.5
C 3 233 50110 254.52 842 851 193.5
C 7 247 34018 171.37 842 851 193.5
D 12 218 412832 2005.73 850 824 205.4
D 2 16 309296 1501.7 850 824 205.4
D 7 238 121451 587.23 850 824 205.4

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