ASTROSAT CZTI

Data Quality Report

Orbit 06297

Creation date: 2024-06-27T15:05:19.454516
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_118T01_9000000826_06297cztM0_level2.evt modeM0/AS1A02_118T01_9000000826_06297cztM0_level2_quad_clean.evt
Size (bytes)622,776,96086,060,160
Size593.9 MB 82.1 MB
Events in quadrant A4,349,789549,839
Events in quadrant B3,785,827551,765
Events in quadrant C2,929,096555,196
Events in quadrant D7,359,624498,906

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178762
B0153971
C0132281
D0263751

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64531482.293507%
B64532724.215094%
C64531091.689137%
D6453105616.364482%

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 7618 6453 0 0 0.00% 0.00%
B 7618 6453 117 117 1.54% 1.81%
C 7618 6453 0 0 0.00% 0.00%
D 7618 6453 863 863 11.33% 13.37%

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 8 15 737838 4778.01 765 748 154.3
A 15 236 621401 4023.24 765 748 154.3
A 14 111 35100 222.68 765 748 154.3
B 0 219 396973 2767.56 765 746 143.2
B 3 64 304830 2123.96 765 746 143.2
B 4 81 66481 459.14 765 746 143.2
C 1 16 29916 173.46 741 744 168.2
C 13 61 6058 31.6 741 744 168.2
C 9 54 5903 30.68 741 744 168.2
D 2 63 3328851 19239.96 710 685 173.0
D 12 220 482979 2788.12 710 685 173.0
D 2 152 442787 2555.77 710 685 173.0

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