ASTROSAT CZTI

Data Quality Report

Orbit 43110

Creation date: 2024-06-27T22:48:10.184209
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/AS1T05_154T01_9000005850_43110cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43110cztM0_level2_quad_clean.evt
Size (bytes)305,824,32087,183,360
Size291.7 MB 83.1 MB
Events in quadrant A3,673,702566,137
Events in quadrant B2,266,406607,395
Events in quadrant C2,549,431574,704
Events in quadrant D2,432,094532,917

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01408572
B01035974
C01086688
D01096097

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51183035.920281%
B511370.136906%
C511890.175850%
D5113240.469392%

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 7098 5131 218 218 3.07% 4.25%
B 7098 5123 0 0 0.00% 0.00%
C 7098 5128 4 4 0.06% 0.08%
D 7098 5121 25 25 0.35% 0.49%

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 15 222 820884 7214.62 559 547 113.7
A 10 83 538021 4726.92 559 547 113.7
A 15 237 146735 1285.68 559 547 113.7
B 3 112 19941 179.25 563 548 108.2
B 0 189 17665 158.21 563 548 108.2
B 0 229 17651 158.08 563 548 108.2
C 15 214 234470 1834.02 548 550 127.5
C 0 239 78860 613.98 548 550 127.5
C 14 254 64795 503.71 548 550 127.5
D 1 52 113260 846.54 551 535 133.2
D 2 249 112816 843.21 551 535 133.2
D 12 233 28940 213.32 551 535 133.2

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