ASTROSAT CZTI

Data Quality Report

Orbit 42363

Creation date: 2024-06-27T22:39:25.506077
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/AS1A12_102T01_9000005798_42363cztM0_level2.fits modeM0/AS1A12_102T01_9000005798_42363cztM0_level2_quad_clean.evt
Size (bytes)348,768,00098,516,160
Size332.6 MB 94.0 MB
Events in quadrant A3,108,280656,943
Events in quadrant B3,163,449652,852
Events in quadrant C2,695,099652,598
Events in quadrant D3,471,193597,302

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131492
B0138702
C0121432
D0148682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6059110.181548%
B60591792.954283%
C605940.066017%
D60591442.376630%

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 7672 6060 6 6 0.08% 0.10%
B 7672 6059 126 126 1.64% 2.08%
C 7672 6060 0 0 0.00% 0.00%
D 7672 6060 121 121 1.58% 2.00%

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 83 589545 4608.25 626 614 127.8
A 15 235 31728 243.46 626 614 127.8
A 7 3 28405 217.46 626 614 127.8
B 3 112 298785 2513.88 616 599 118.6
B 5 255 280472 2359.49 616 599 118.6
B 5 172 101336 849.27 616 599 118.6
C 15 214 252858 1728.76 624 627 145.9
C 13 61 4275 25.0 624 627 145.9
C 8 79 4233 24.72 624 627 145.9
D 1 52 308078 2063.63 615 600 149.0
D 12 6 258660 1731.96 615 600 149.0
D 5 222 143563 959.49 615 600 149.0

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