ASTROSAT CZTI

Data Quality Report

Orbit 46595

Creation date: 2024-06-27T23:25:14.411996
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_092T03_9000006234_46595cztM0_level2.fits modeM0/AS1A13_092T03_9000006234_46595cztM0_level2_quad_clean.evt
Size (bytes)280,045,44060,327,360
Size267.1 MB 57.5 MB
Events in quadrant A3,802,308397,618
Events in quadrant B1,873,540411,911
Events in quadrant C1,678,142392,561
Events in quadrant D2,711,675351,933

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142090
B081200
C078813
D0106265

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3857661.711174%
B3857300.777807%
C3856120.311203%
D38571513.914960%

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 3857 3857 45 45 1.17% 1.17%
B 3857 3857 17 17 0.44% 0.44%
C 3858 3857 10 10 0.26% 0.26%
D 3858 3858 138 138 3.58% 3.58%

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 1940581 22633.31 407 400 85.7
A 13 248 154128 1793.32 407 400 85.7
A 9 191 88207 1024.32 407 400 85.7
B 15 201 80897 981.47 407 395 82.0
B 2 2 49385 597.28 407 395 82.0
B 3 112 25577 307.01 407 395 82.0
C 14 254 49166 503.94 401 403 96.8
C 15 208 22666 230.08 401 403 96.8
C 3 233 17899 180.81 401 403 96.8
D 1 52 379634 3766.71 396 383 100.7
D 12 233 197400 1956.77 396 383 100.7
D 2 120 131398 1301.24 396 383 100.7

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