ASTROSAT CZTI

Data Quality Report

Orbit 42211

Creation date: 2024-06-27T22:38:42.819401
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/AS1A12_088T52_9000005778_42211cztM0_level2.fits modeM0/AS1A12_088T52_9000005778_42211cztM0_level2_quad_clean.evt
Size (bytes)331,868,16091,131,840
Size316.5 MB 86.9 MB
Events in quadrant A3,143,184619,683
Events in quadrant B2,659,750631,643
Events in quadrant C2,474,662601,156
Events in quadrant D3,602,372543,600

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125581
B0113961
C0105701
D0142441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5195380.731473%
B5195531.020212%
C519620.038491%
D51961452.790608%

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 7048 5196 14 14 0.20% 0.27%
B 7048 5196 41 41 0.58% 0.79%
C 7049 5197 0 0 0.00% 0.00%
D 7049 5197 143 143 2.03% 2.75%

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 542648 4403.65 601 589 123.1
A 15 222 152677 1235.55 601 589 123.1
A 15 223 77396 623.97 601 589 123.1
B 7 202 82437 715.98 591 577 114.3
B 0 229 79783 692.76 591 577 114.3
B 0 245 71535 620.62 591 577 114.3
C 15 214 217756 1617.31 577 581 134.3
C 7 220 5804 38.9 577 581 134.3
C 13 61 3841 24.28 577 581 134.3
D 1 52 1036865 7404.73 574 559 140.0
D 12 6 93868 666.72 574 559 140.0
D 1 47 34894 245.33 574 559 140.0

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