ASTROSAT CZTI

Data Quality Report

Orbit 16214

Creation date: 2024-06-27T17:19:25.976385
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/AS1T02_109T01_9000002386_16214cztM0_level2.evt modeM0/AS1T02_109T01_9000002386_16214cztM0_level2_quad_clean.evt
Size (bytes)555,160,32073,022,400
Size529.4 MB 69.6 MB
Events in quadrant A5,568,025421,292
Events in quadrant B3,637,797448,282
Events in quadrant C3,575,028431,415
Events in quadrant D3,561,461426,582

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210463
B0152002
C0147442
D0151092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A694696413.878491%
B6946961.382090%
C69461572.260294%
D6946831.194932%

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 7652 6948 717 717 9.37% 10.32%
B 7652 6948 2 2 0.03% 0.03%
C 7652 6948 2 2 0.03% 0.03%
D 7652 6948 11 11 0.14% 0.16%

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 15 174 2022417 11825.92 845 826 170.9
A 4 2 248410 1448.32 845 826 170.9
A 9 143 30694 174.72 845 826 170.9
B 3 64 109513 650.07 871 847 167.2
B 0 198 44053 258.47 871 847 167.2
B 3 209 19598 112.17 871 847 167.2
C 14 238 129434 659.06 834 841 195.1
C 7 247 84918 430.91 834 841 195.1
C 3 233 84563 429.09 834 841 195.1
D 2 233 146300 691.27 855 829 210.4
D 1 52 53752 251.49 855 829 210.4
D 15 0 48851 228.2 855 829 210.4

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