ASTROSAT CZTI

Data Quality Report

Orbit 38073

Creation date: 2024-06-27T21:48:06.670198
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/AS1A11_047T09_9000005362_38073cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38073cztM0_level2_quad_clean.evt
Size (bytes)310,610,88092,678,400
Size296.2 MB 88.4 MB
Events in quadrant A2,763,133627,263
Events in quadrant B2,703,438644,843
Events in quadrant C2,628,312608,486
Events in quadrant D2,995,657559,356

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113083
B0114382
C0109242
D0124652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5226110.210486%
B5226280.535783%
C5226140.267891%
D5226831.588213%

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 7289 5227 2 2 0.03% 0.04%
B 7289 5227 11 11 0.15% 0.21%
C 7289 5227 10 10 0.14% 0.19%
D 7289 5227 68 68 0.93% 1.30%

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 360090 2892.76 612 601 124.3
A 12 189 9792 73.96 612 601 124.3
A 13 6 8231 61.4 612 601 124.3
B 0 229 80069 684.42 606 591 116.1
B 0 186 72728 621.21 606 591 116.1
B 4 171 49817 423.91 606 591 116.1
C 15 214 217743 1568.28 593 598 138.5
C 0 10 61730 441.51 593 598 138.5
C 1 23 20486 143.64 593 598 138.5
D 2 250 151742 1044.71 591 575 144.7
D 5 222 143923 990.67 591 575 144.7
D 13 249 121566 836.16 591 575 144.7

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