ASTROSAT CZTI

Data Quality Report

Orbit 05910

Creation date: 2024-06-27T15:00:44.879378
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/AS1A02_174T01_9000000766_05910cztM0_level2.evt modeM0/AS1A02_174T01_9000000766_05910cztM0_level2_quad_clean.evt
Size (bytes)337,530,24050,014,080
Size321.9 MB 47.7 MB
Events in quadrant A1,322,551213,846
Events in quadrant B2,809,200320,974
Events in quadrant C2,595,752326,426
Events in quadrant D3,147,930297,769

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01648410283
B0172905105
C0166994784
D0191686103

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016454
B016131
C016442
D016448

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3011882.922617%
B56632684.732474%
C57171242.168970%
D55951743.109920%

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 4630 3649 0 0 0.00% 0.00%
B 8271 6679 14 14 0.17% 0.21%
C 8269 6677 0 0 0.00% 0.00%
D 8209 6633 15 15 0.18% 0.23%

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 7 16 9141 122.24 340 332 72.1
A 15 236 3380 42.3 340 332 72.1
A 0 226 3336 41.69 340 332 72.1
B 0 214 52519 397.87 670 652 130.4
B 15 255 41031 309.75 670 652 130.4
B 0 219 37246 280.71 670 652 130.4
C 9 247 25030 158.62 656 657 153.7
C 13 61 5188 29.49 656 657 153.7
C 8 128 4288 23.63 656 657 153.7
D 8 195 275769 1722.69 642 619 159.7
D 2 152 199436 1244.77 642 619 159.7
D 1 20 161200 1005.38 642 619 159.7

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