ASTROSAT CZTI

Data Quality Report

Orbit 44023

Creation date: 2024-06-27T22:58:25.628797
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_023T03_9000005934_44023cztM0_level2.fits modeM0/AS1A13_023T03_9000005934_44023cztM0_level2_quad_clean.evt
Size (bytes)311,685,12079,225,920
Size297.2 MB 75.6 MB
Events in quadrant A2,980,987531,938
Events in quadrant B2,307,758560,581
Events in quadrant C2,327,368528,032
Events in quadrant D3,561,999453,996

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120762
B097831
C099221
D0137181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4610711.540130%
B4610410.889371%
C4610110.238612%
D46103457.483731%

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 5775 4611 3 3 0.05% 0.07%
B 5775 4611 3 3 0.05% 0.07%
C 5775 4611 5 5 0.09% 0.11%
D 5775 4611 258 258 4.47% 5.60%

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 806387 7121.81 543 532 113.2
A 14 238 26816 232.29 543 532 113.2
A 15 222 18585 159.54 543 532 113.2
B 0 213 60507 554.93 547 529 108.1
B 2 2 31942 290.64 547 529 108.1
B 3 112 20868 188.18 547 529 108.1
C 3 233 162851 1286.46 535 539 126.2
C 14 254 68596 539.41 535 539 126.2
C 1 241 10523 79.13 535 539 126.2
D 1 52 760148 5824.97 511 495 130.4
D 2 249 305455 2338.41 511 495 130.4
D 8 48 264218 2022.21 511 495 130.4

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