ASTROSAT CZTI

Data Quality Report

Orbit 01199

Creation date: 2024-06-27T14:09:01.143669
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/AS1G04_007T02_9000000220_01199cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01199cztM0_level2_quad_clean.evt
Size (bytes)986,693,760100,906,560
Size941.0 MB 96.2 MB
Events in quadrant A7,328,994664,403
Events in quadrant B7,644,641669,078
Events in quadrant C7,361,489646,545
Events in quadrant D7,122,892630,611

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263342
B0271971
C0264161
D0257451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6383210.328999%
B638350.078333%
C638340.062666%
D638340.062666%

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 7577 6382 152 152 2.01% 2.38%
B 7577 6382 155 155 2.05% 2.43%
C 7578 6383 114 114 1.50% 1.79%
D 7577 6382 102 102 1.35% 1.60%

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 4 32 100741 220.48 1881 1900 448.3
A 11 79 7841 13.25 1881 1900 448.3
A 3 111 6429 10.1 1881 1900 448.3
B 6 53 45851 94.85 1979 1991 462.4
B 7 221 32926 66.9 1979 1991 462.4
B 8 219 19500 37.86 1979 1991 462.4
C 15 241 340760 694.03 1768 1831 488.4
C 9 83 64699 128.74 1768 1831 488.4
C 3 111 21436 40.15 1768 1831 488.4
D 1 239 529084 1007.08 1698 1759 523.6
D 12 22 178275 337.11 1698 1759 523.6
D 1 83 36225 65.82 1698 1759 523.6

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