ASTROSAT CZTI

Data Quality Report

Orbit 48260

Creation date: 2024-09-05T21:12:07.699644
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/AS1A13_029T01_9000006422_48260cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48260cztM0_level2_quad_clean.evt
Size (bytes)498,962,880109,791,360
Size475.8 MB 104.7 MB
Events in quadrant A7,400,875713,362
Events in quadrant B3,447,897754,448
Events in quadrant C3,684,735716,689
Events in quadrant D3,414,737670,950

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266652
B0147832
C0156562
D0147942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67244636.885782%
B67241872.781083%
C67242243.331350%
D67241001.487210%

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 7684 6724 40 40 0.52% 0.59%
B 7684 6724 21 21 0.27% 0.31%
C 7684 6724 126 126 1.64% 1.87%
D 7684 6724 30 30 0.39% 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 10 83 4327428 26474.42 779 763 163.4
A 7 3 40941 245.85 779 763 163.4
A 13 254 13585 78.46 779 763 163.4
B 4 21 119477 760.9 790 764 156.0
B 0 186 75359 478.12 790 764 156.0
B 0 200 72783 461.61 790 764 156.0
C 12 2 534294 2905.89 768 772 183.6
C 14 254 121138 655.59 768 772 183.6
C 12 249 17450 90.84 768 772 183.6
D 2 249 211123 1066.91 781 756 197.2
D 2 120 46203 230.49 781 756 197.2
D 12 1 40332 200.72 781 756 197.2

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