ASTROSAT CZTI

Data Quality Report

Orbit 47514

Creation date: 2024-07-11T16:51:10.841896
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/AS1C09_002T01_9000006334_47514cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47514cztM0_level2_quad_clean.evt
Size (bytes)707,748,480140,757,120
Size675.0 MB 134.2 MB
Events in quadrant A9,212,262918,293
Events in quadrant B5,134,914942,364
Events in quadrant C3,922,865942,796
Events in quadrant D7,245,822845,440

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0342202
B0209532
C0181492
D0277322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01800
B01800
C01800
D01800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88293834.337977%
B88303544.009060%
C8830760.860702%
D88304505.096263%

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 10599 8831 91 91 0.86% 1.03%
B 10600 8832 167 167 1.58% 1.89%
C 10600 8832 14 14 0.13% 0.16%
D 10600 8832 378 378 3.57% 4.28%

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 5094224 25139.42 972 950 202.6
A 13 248 154020 755.52 972 950 202.6
A 9 191 102864 503.03 972 950 202.6
B 5 32 829137 4385.7 963 932 188.8
B 0 200 243633 1285.21 963 932 188.8
B 0 186 64846 338.45 963 932 188.8
C 12 249 52944 228.25 970 972 227.7
C 0 207 50075 215.65 970 972 227.7
C 1 3 15647 64.45 970 972 227.7
D 6 112 1467953 6111.9 958 925 240.0
D 2 165 820748 3415.53 958 925 240.0
D 2 249 498923 2074.75 958 925 240.0

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