ASTROSAT CZTI

Data Quality Report

Orbit 43595

Creation date: 2024-06-27T22:53:29.392552
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/AS1C07_001T10_9000005890_43595cztM0_level2.fits modeM0/AS1C07_001T10_9000005890_43595cztM0_level2_quad_clean.evt
Size (bytes)1,419,814,08082,451,520
Size1.3 GB 78.6 MB
Events in quadrant A7,741,193799,830
Events in quadrant B6,485,414812,035
Events in quadrant C19,834,906199,344
Events in quadrant D17,909,186147,577

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284020
B0246230
C0641740
D0584127

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A761577310.151018%
B76156919.074196%
C7615759599.737360%
D7614761299.973733%

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 7615 7615 614 614 8.06% 8.06%
B 7615 7615 319 319 4.19% 4.19%
C 7614 7614 7460 7460 97.98% 97.98%
D 7613 7613 6761 6761 88.81% 88.81%

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 10 99 1625341 9645.43 805 789 168.4
A 14 63 1282241 7608.35 805 789 168.4
A 10 83 785492 4659.01 805 789 168.4
B 0 183 1308404 8306.7 811 788 157.4
B 4 206 446973 2834.41 811 788 157.4
B 0 219 288926 1830.41 811 788 157.4
C 15 142 12137659 229627.31 217 218 52.9
C 15 174 4218252 79800.66 217 218 52.9
C 3 233 1323462 25034.35 217 218 52.9
D 4 216 4660582 75105.76 185 176 62.1
D 4 212 3966445 63919.25 185 176 62.1
D 8 192 3411988 54983.78 185 176 62.1

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