ASTROSAT CZTI

Data Quality Report

Orbit 41211

Creation date: 2024-06-27T22:25:59.113561
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/AS1C07_001T12_9000005632_41211cztM0_level2.fits modeM0/AS1C07_001T12_9000005632_41211cztM0_level2_quad_clean.evt
Size (bytes)345,248,64091,160,640
Size329.3 MB 86.9 MB
Events in quadrant A2,892,834611,249
Events in quadrant B2,690,537626,848
Events in quadrant C3,370,137593,805
Events in quadrant D3,392,048537,837

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120113
B0122972
C0137092
D0143142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A557690.161406%
B5576370.663558%
C55761482.654232%
D55762514.501435%

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 9042 5578 3 3 0.03% 0.05%
B 9042 5578 14 14 0.15% 0.25%
C 9042 5578 129 129 1.43% 2.31%
D 9042 5578 227 227 2.51% 4.07%

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 538432 4480.93 588 575 120.0
A 12 189 30429 248.72 588 575 120.0
A 2 79 16305 131.05 588 575 120.0
B 0 186 194412 1715.8 585 568 113.0
B 0 190 117205 1032.41 585 568 113.0
B 15 85 57597 504.79 585 568 113.0
C 14 254 831287 6362.1 565 569 130.6
C 15 214 239696 1831.37 565 569 130.6
C 0 10 84699 644.31 565 569 130.6
D 13 249 689881 5062.68 558 540 136.2
D 12 16 423182 3103.98 558 540 136.2
D 2 249 42038 304.77 558 540 136.2

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