ASTROSAT CZTI

Data Quality Report

Orbit 29541

Creation date: 2024-06-27T20:05:12.742586
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/AS1A10_073T07_9000004254_29541cztM0_level2.evt modeM0/AS1A10_073T07_9000004254_29541cztM0_level2_quad_clean.evt
Size (bytes)673,488,000103,728,960
Size642.3 MB 98.9 MB
Events in quadrant A3,349,746682,674
Events in quadrant B3,463,945713,964
Events in quadrant C3,786,258677,940
Events in quadrant D9,349,668605,390

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141672
B0145422
C0156082
D0324603

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6616520.785973%
B6616650.982467%
C66163665.532044%
D6616125919.029625%

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 8891 6618 0 0 0.00% 0.00%
B 8891 6618 0 0 0.00% 0.00%
C 8891 6618 0 0 0.00% 0.00%
D 8891 6618 1082 1082 12.17% 16.35%

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 13 254 13319 71.6 865 846 174.2
A 0 13 9860 51.75 865 846 174.2
A 3 137 8364 43.16 865 846 174.2
B 0 190 33154 195.86 869 848 164.9
B 12 111 19956 115.84 869 848 164.9
B 11 111 18216 105.29 869 848 164.9
C 3 233 225827 1172.8 824 833 191.8
C 14 238 214486 1113.68 824 833 191.8
C 14 254 114811 594.12 824 833 191.8
D 8 195 4936208 26104.32 794 774 189.1
D 7 69 863282 4561.95 794 774 189.1
D 7 238 208224 1097.24 794 774 189.1

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