ASTROSAT CZTI

Data Quality Report

Orbit 44317

Creation date: 2024-06-27T23:02:03.579944
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/AS1A13_059T01_9000005990_44317cztM0_level2.fits modeM0/AS1A13_059T01_9000005990_44317cztM0_level2_quad_clean.evt
Size (bytes)525,162,240113,088,960
Size500.8 MB 107.9 MB
Events in quadrant A5,060,411770,685
Events in quadrant B4,194,966757,814
Events in quadrant C3,269,415763,606
Events in quadrant D6,376,060648,231

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206572
B0172632
C0147012
D0237082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69432032.923808%
B69434346.250900%
C6943470.676941%
D694373810.629411%

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 7828 6944 8 8 0.10% 0.12%
B 7828 6944 269 269 3.44% 3.87%
C 7828 6944 12 12 0.15% 0.17%
D 7828 6944 736 736 9.40% 10.60%

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 10 83 1846134 11013.24 797 778 167.6
A 15 223 44988 263.85 797 778 167.6
A 0 243 44963 263.7 797 778 167.6
B 5 172 744869 4898.5 770 744 151.9
B 4 158 137097 897.6 770 744 151.9
B 0 219 100232 654.92 770 744 151.9
C 14 254 130088 697.05 787 792 185.5
C 1 3 26771 140.06 787 792 185.5
C 15 208 23313 121.41 787 792 185.5
D 1 20 1297649 6644.58 766 743 195.2
D 1 4 702033 3593.0 766 743 195.2
D 13 249 390666 1997.73 766 743 195.2

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