ASTROSAT CZTI

Data Quality Report

Orbit 05801

Creation date: 2024-06-27T14:59:18.383636
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/AS1A02_106T01_9000000744_05801cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05801cztM0_level2_quad_clean.evt
Size (bytes)113,520,96028,431,360
Size108.3 MB 27.1 MB
Events in quadrant A746,603183,435
Events in quadrant B819,637187,928
Events in quadrant C763,019187,184
Events in quadrant D990,148176,947

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034571
B036181
C034571
D041061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A170410.058685%
B170430.176056%
C170420.117371%
D1704100.586854%

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 1704 1704 0 0 0.00% 0.00%
B 1704 1704 1 1 0.06% 0.06%
C 1704 1704 0 0 0.00% 0.00%
D 1704 1704 10 10 0.59% 0.59%

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 0 31 2647 60.1 192 188 40.9
A 12 194 1826 40.04 192 188 40.9
A 0 226 1795 39.28 192 188 40.9
B 4 81 20095 502.13 198 193 39.6
B 15 204 15667 390.41 198 193 39.6
B 0 219 8612 212.41 198 193 39.6
C 12 4 4749 98.29 194 194 46.3
C 13 61 1562 29.52 194 194 46.3
C 8 222 613 9.04 194 194 46.3
D 11 241 158505 3316.77 190 184 47.7
D 7 55 31681 659.85 190 184 47.7
D 8 195 26935 560.42 190 184 47.7

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