ASTROSAT CZTI

Data Quality Report

Orbit 12563

Creation date: 2024-06-27T16:29:15.798102
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/AS1C03_021T01_9000001864_12563cztM0_level2.evt modeM0/AS1C03_021T01_9000001864_12563cztM0_level2_quad_clean.evt
Size (bytes)504,463,680104,664,960
Size481.1 MB 99.8 MB
Events in quadrant A3,466,280684,488
Events in quadrant B4,229,366700,223
Events in quadrant C3,360,535682,649
Events in quadrant D3,767,829636,398

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145173
B0168622
C0141892
D0156302

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66751101.647940%
B66753024.524345%
C6675580.868914%
D66751492.232210%

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 9341 6678 1 1 0.01% 0.01%
B 9341 6678 142 142 1.52% 2.13%
C 9341 6678 2 2 0.02% 0.03%
D 9340 6676 74 74 0.79% 1.11%

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 12 189 38431 212.87 878 863 176.5
A 12 96 15617 83.6 878 863 176.5
A 8 15 9051 46.4 878 863 176.5
B 4 239 424792 2558.04 879 858 165.7
B 3 64 274704 1652.4 879 858 165.7
B 11 51 58079 345.27 879 858 165.7
C 15 208 30888 152.11 854 860 197.4
C 13 61 6209 27.1 854 860 197.4
C 3 202 2097 6.27 854 860 197.4
D 1 52 209235 1050.54 830 809 198.4
D 11 176 173932 872.6 830 809 198.4
D 13 249 95441 476.98 830 809 198.4

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