ASTROSAT CZTI

Data Quality Report

Orbit 42529

Creation date: 2024-06-27T22:41:14.705677
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/AS1A07_041T01_9000005808_42529cztM0_level2.fits modeM0/AS1A07_041T01_9000005808_42529cztM0_level2_quad_clean.evt
Size (bytes)297,774,72089,115,840
Size284.0 MB 85.0 MB
Events in quadrant A2,841,638591,182
Events in quadrant B2,417,588611,165
Events in quadrant C2,520,033584,587
Events in quadrant D2,819,847531,665

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117152
B0111482
C0109622
D0124232

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A543090.165746%
B5430210.386740%
C543080.147330%
D5430871.602210%

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 7163 5431 2 2 0.03% 0.04%
B 7163 5431 8 8 0.11% 0.15%
C 7163 5431 0 0 0.00% 0.00%
D 7163 5431 72 72 1.01% 1.33%

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 539657 4472.57 585 571 120.5
A 2 79 32065 261.29 585 571 120.5
A 3 137 6624 50.22 585 571 120.5
B 5 255 75469 654.53 583 567 114.4
B 0 245 50371 435.21 583 567 114.4
B 12 111 14371 120.63 583 567 114.4
C 15 214 227924 1680.3 582 585 135.3
C 12 249 12382 87.19 582 585 135.3
C 9 54 8711 60.06 582 585 135.3
D 2 249 264854 1875.37 573 558 140.9
D 12 6 228323 1616.15 573 558 140.9
D 1 52 74804 526.83 573 558 140.9

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