ASTROSAT CZTI

Data Quality Report

Orbit 09518

Creation date: 2024-06-27T15:47:10.169244
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/AS1G05_230T06_9000001350_09518cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09518cztM0_level2_quad_clean.evt
Size (bytes)538,554,24087,937,920
Size513.6 MB 83.9 MB
Events in quadrant A4,073,328532,910
Events in quadrant B3,831,349538,224
Events in quadrant C3,544,821530,110
Events in quadrant D4,322,883510,642

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171493
B0165392
C0160722
D01814110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7933580.731123%
B7933480.605067%
C7933100.126056%
D7930680.857503%

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 9573 7935 7 7 0.07% 0.09%
B 9573 7935 8 8 0.08% 0.10%
C 9573 7935 0 0 0.00% 0.00%
D 9573 7935 43 43 0.45% 0.54%

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 1 162 220661 1143.53 936 915 192.2
A 1 161 82411 424.1 936 915 192.2
A 1 178 79646 409.71 936 915 192.2
B 10 252 94823 525.06 942 919 178.8
B 0 214 47084 258.13 942 919 178.8
B 12 111 19985 106.61 942 919 178.8
C 13 61 6698 27.26 907 910 212.3
C 8 222 4400 16.44 907 910 212.3
C 9 68 2320 6.64 907 910 212.3
D 8 195 451167 1926.04 897 873 233.8
D 1 52 166958 710.39 897 873 233.8
D 12 227 125459 532.89 897 873 233.8

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