ASTROSAT CZTI

Data Quality Report

Orbit 17736

Creation date: 2024-06-27T17:40:13.269014
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/AS1T03_070T01_9000002632_17736cztM0_level2.evt modeM0/AS1T03_070T01_9000002632_17736cztM0_level2_quad_clean.evt
Size (bytes)159,670,08016,001,280
Size152.3 MB 15.3 MB
Events in quadrant A1,142,30980,235
Events in quadrant B1,162,04483,400
Events in quadrant C1,168,32080,386
Events in quadrant D1,208,79778,782

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A048681
B049071
C048901
D050831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A222923910.722297%
B222924611.036339%
C222923210.408255%
D22292029.062360%

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 2294 2231 0 0 0.00% 0.00%
B 2294 2231 2 2 0.09% 0.09%
C 2294 2231 0 0 0.00% 0.00%
D 2294 2231 10 10 0.44% 0.45%

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 14799 230.94 292 284 62.9
A 14 237 3219 46.7 292 284 62.9
A 0 226 2499 35.24 292 284 62.9
B 10 245 11415 188.77 291 282 59.0
B 0 219 7409 120.84 291 282 59.0
B 12 111 7318 119.3 291 282 59.0
C 14 238 42152 616.81 280 280 67.9
C 3 233 16906 244.91 280 280 67.9
C 0 207 6006 84.35 280 280 67.9
D 1 52 101114 1432.34 286 278 70.4
D 2 165 18972 265.54 286 278 70.4
D 2 234 8353 114.7 286 278 70.4

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