ASTROSAT CZTI

Data Quality Report

Orbit 44339

Creation date: 2024-06-27T23:02:21.321731
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_004T09_9000005992_44339cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44339cztM0_level2_quad_clean.evt
Size (bytes)462,571,200116,161,920
Size441.1 MB 110.8 MB
Events in quadrant A5,384,870765,085
Events in quadrant B3,787,568789,257
Events in quadrant C3,371,236770,254
Events in quadrant D4,024,875695,522

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220132
B0159562
C0150302
D0168982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71332092.930043%
B71341562.186712%
C7134680.953182%
D71341632.284833%

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 8888 7133 40 40 0.45% 0.56%
B 8889 7135 25 25 0.28% 0.35%
C 8889 7135 10 10 0.11% 0.14%
D 8889 7135 109 109 1.23% 1.53%

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 1789517 10489.33 819 800 170.5
A 15 223 196855 1149.7 819 800 170.5
A 13 248 143604 837.43 819 800 170.5
B 0 219 184117 1122.89 820 795 163.3
B 15 36 67784 410.32 820 795 163.3
B 4 173 65215 394.59 820 795 163.3
C 14 254 98327 513.73 807 813 189.8
C 14 96 47957 248.36 807 813 189.8
C 5 4 30927 158.65 807 813 189.8
D 13 249 308407 1526.63 801 777 201.5
D 5 222 221379 1094.75 801 777 201.5
D 2 153 106688 525.59 801 777 201.5

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