ASTROSAT CZTI

Data Quality Report

Orbit 19655

Creation date: 2024-06-27T18:05:16.504323
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_005T01_9000002928_19655cztM0_level2.evt modeM0/AS1T03_005T01_9000002928_19655cztM0_level2_quad_clean.evt
Size (bytes)267,920,64055,100,160
Size255.5 MB 52.5 MB
Events in quadrant A1,849,845363,538
Events in quadrant B2,010,225372,735
Events in quadrant C1,866,441347,598
Events in quadrant D2,144,777333,037

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074981
B080922
C075651
D085191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3555230.646976%
B3554501.406866%
C3554471.322454%
D35541283.601576%

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 4865 3555 0 0 0.00% 0.00%
B 4864 3555 8 8 0.16% 0.23%
C 4864 3554 0 0 0.00% 0.00%
D 4864 3555 108 108 2.22% 3.04%

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 11 29 5845 55.03 478 468 97.7
A 13 254 4271 38.92 478 468 97.7
A 0 226 4228 38.48 478 468 97.7
B 3 112 92355 1014.58 478 467 90.6
B 0 198 17179 184.53 478 467 90.6
B 12 111 10673 112.69 478 467 90.6
C 14 238 72842 675.01 455 458 107.2
C 3 233 14690 132.72 455 458 107.2
C 13 61 3253 26.06 455 458 107.2
D 1 52 387150 3558.5 450 438 108.7
D 10 199 31048 281.67 450 438 108.7
D 2 16 15192 135.77 450 438 108.7

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