ASTROSAT CZTI

Data Quality Report

Orbit 01403

Creation date: 2024-06-27T14:12:09.412555
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/AS1G04_003T01_9000000234_01403cztM0_level2.evt modeM0/AS1G04_003T01_9000000234_01403cztM0_level2_quad_clean.evt
Size (bytes)797,760,00073,670,400
Size760.8 MB 70.3 MB
Events in quadrant A7,238,289459,919
Events in quadrant B6,078,441483,129
Events in quadrant C5,396,688481,031
Events in quadrant D5,124,722466,648

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249622
B0214701
C0195221
D0187011

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48422485.121850%
B4842300.619579%
C484220.041305%
D4842120.247831%

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 6117 4843 811 811 13.26% 16.75%
B 6117 4842 243 243 3.97% 5.02%
C 6117 4843 94 94 1.54% 1.94%
D 6117 4843 136 136 2.22% 2.81%

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 15 127 1871290 5722.76 1368 1378 326.8
A 4 32 80670 242.67 1368 1378 326.8
A 0 253 15540 43.34 1368 1378 326.8
B 8 4 204310 599.42 1456 1460 338.4
B 6 53 125380 366.18 1456 1460 338.4
B 12 52 102963 299.94 1456 1460 338.4
C 15 241 171983 464.77 1330 1377 367.1
C 3 111 14645 36.14 1330 1377 367.1
C 3 79 10807 25.69 1330 1377 367.1
D 9 53 215284 560.28 1270 1310 381.9
D 9 66 44043 111.89 1270 1310 381.9
D 2 88 38203 96.6 1270 1310 381.9

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