ASTROSAT CZTI

Data Quality Report

Orbit 16038

Creation date: 2024-06-27T17:17:07.563817
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/AS1G08_012T01_9000002370_16038cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16038cztM0_level2_quad_clean.evt
Size (bytes)478,206,720100,310,400
Size456.1 MB 95.7 MB
Events in quadrant A3,641,865641,663
Events in quadrant B3,458,662666,803
Events in quadrant C3,567,828647,331
Events in quadrant D3,380,453636,539

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150363
B0143542
C0146872
D0142172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63842403.759398%
B63841382.161654%
C63841712.678571%
D63841081.691729%

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 9075 6385 116 116 1.28% 1.82%
B 9075 6385 0 0 0.00% 0.00%
C 9075 6385 2 2 0.02% 0.03%
D 9075 6385 1 1 0.01% 0.02%

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 15 223 241846 1392.75 871 855 173.0
A 15 239 47989 272.4 871 855 173.0
A 0 226 7813 40.21 871 855 173.0
B 12 111 18870 107.49 881 862 167.5
B 11 111 15855 89.5 881 862 167.5
B 14 111 13375 74.69 881 862 167.5
C 14 238 133735 670.41 858 864 198.2
C 3 233 75448 376.32 858 864 198.2
C 13 61 6016 25.99 858 864 198.2
D 12 110 39492 186.3 870 849 207.4
D 2 152 36847 173.55 870 849 207.4
D 2 234 20355 94.04 870 849 207.4

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