ASTROSAT CZTI

Data Quality Report

Orbit 04108

Creation date: 2024-06-27T14:37:31.284545
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/AS1G05_191T01_9000000524_04108cztM0_level2.evt modeM0/AS1G05_191T01_9000000524_04108cztM0_level2_quad_clean.evt
Size (bytes)492,963,84081,380,160
Size470.1 MB 77.6 MB
Events in quadrant A3,314,597517,205
Events in quadrant B3,562,392512,055
Events in quadrant C4,467,136497,951
Events in quadrant D3,152,828492,434

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137853
B0146002
C0174462
D0135742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63691091.711415%
B63691582.480766%
C63693064.804522%
D6369741.161878%

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 7504 6369 30 30 0.40% 0.47%
B 7504 6369 71 71 0.95% 1.11%
C 7504 6369 103 103 1.37% 1.62%
D 7504 6369 10 10 0.13% 0.16%

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 0 50 155085 948.04 801 787 162.8
A 0 199 65160 395.52 801 787 162.8
A 0 226 13921 80.7 801 787 162.8
B 14 167 399361 2606.52 804 786 152.9
B 15 204 27953 177.66 804 786 152.9
B 0 183 16654 103.77 804 786 152.9
C 9 144 1449656 8089.85 773 780 179.1
C 13 61 6351 31.11 773 780 179.1
C 7 247 1868 6.07 773 780 179.1
D 10 172 71019 371.59 781 762 189.1
D 13 46 39622 205.53 781 762 189.1
D 13 239 33621 173.79 781 762 189.1

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