ASTROSAT CZTI

Data Quality Report

Orbit 23692

Creation date: 2024-06-27T18:57:34.764348
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/AS1C05_012T03_9000003500_23692cztM0_level2.evt modeM0/AS1C05_012T03_9000003500_23692cztM0_level2_quad_clean.evt
Size (bytes)569,992,32094,262,400
Size543.6 MB 89.9 MB
Events in quadrant A2,994,816615,884
Events in quadrant B3,185,680630,165
Events in quadrant C3,165,797611,162
Events in quadrant D7,493,494561,759

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131511
B0136591
C0135531
D0266803

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6243360.576646%
B6244580.928892%
C6244941.505445%
D624394515.136953%

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 7378 6244 0 0 0.00% 0.00%
B 7379 6244 3 3 0.04% 0.05%
C 7379 6244 0 0 0.00% 0.00%
D 7377 6242 774 774 10.49% 12.40%

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 13 254 10048 59.44 775 759 156.3
A 0 226 6631 37.58 775 759 156.3
A 3 137 6572 37.2 775 759 156.3
B 0 245 41945 278.8 777 758 147.7
B 0 183 28749 189.48 777 758 147.7
B 0 189 22405 146.53 777 758 147.7
C 14 238 120535 680.12 759 765 176.1
C 7 247 58287 326.64 759 765 176.1
C 1 16 22513 123.5 759 765 176.1
D 13 174 3855060 22365.59 720 702 172.3
D 1 52 795314 4610.87 720 702 172.3
D 9 35 40086 228.53 720 702 172.3

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