ASTROSAT CZTI

Data Quality Report

Orbit 17060

Creation date: 2024-06-27T17:31:29.512233
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_004T01_9000002532_17060cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17060cztM0_level2_quad_clean.evt
Size (bytes)541,820,16086,443,200
Size516.7 MB 82.4 MB
Events in quadrant A3,040,108559,597
Events in quadrant B3,158,048568,086
Events in quadrant C6,045,999516,694
Events in quadrant D3,720,416515,857

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134613
B0136812
C0224872
D0156432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6557270.411774%
B6557440.671039%
C65575418.250724%
D65573385.154796%

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 7543 6559 1 1 0.01% 0.02%
B 7543 6559 0 0 0.00% 0.00%
C 7543 6559 192 192 2.55% 2.93%
D 7543 6559 265 265 3.51% 4.04%

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 4 2 30228 187.56 779 759 157.1
A 0 226 6947 39.38 779 759 157.1
A 11 29 6042 33.62 779 759 157.1
B 6 36 43871 286.85 781 760 150.3
B 0 197 18551 118.38 781 760 150.3
B 12 111 17276 109.89 781 760 150.3
C 3 233 3022854 17629.42 733 739 171.4
C 14 238 110627 641.03 733 739 171.4
C 9 54 17809 99.58 733 739 171.4
D 15 0 714522 3935.31 745 723 181.4
D 10 70 69695 380.26 745 723 181.4
D 5 222 45834 248.71 745 723 181.4

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