ASTROSAT CZTI

Data Quality Report

Orbit 08524

Creation date: 2024-06-27T15:33:50.565601
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/AS1G07_060T01_9000001200_08524cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08524cztM0_level2_quad_clean.evt
Size (bytes)425,730,24087,413,760
Size406.0 MB 83.4 MB
Events in quadrant A2,899,436558,976
Events in quadrant B3,516,399565,653
Events in quadrant C2,831,444557,298
Events in quadrant D3,223,969532,061

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127633
B0145202
C0126862
D0138842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6206320.515630%
B62061512.433129%
C6206150.241702%
D6206560.902353%

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 7471 6207 0 0 0.00% 0.00%
B 7471 6207 87 87 1.16% 1.40%
C 7471 6207 0 0 0.00% 0.00%
D 7471 6207 40 40 0.54% 0.64%

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 8 5 14643 92.57 746 733 150.3
A 5 16 7696 46.34 746 733 150.3
A 0 226 6885 40.94 746 733 150.3
B 10 16 467934 3316.85 746 731 140.9
B 0 214 65231 457.91 746 731 140.9
B 5 255 46109 322.16 746 731 140.9
C 13 61 5574 28.89 725 729 167.7
C 8 222 2306 9.4 725 729 167.7
C 3 202 1880 6.86 725 729 167.7
D 1 52 487864 2877.84 712 694 169.3
D 2 234 19437 110.72 712 694 169.3
D 2 14 8899 48.47 712 694 169.3

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