ASTROSAT CZTI

Data Quality Report

Orbit 12132

Creation date: 2024-06-27T16:22:50.174370
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/AS1G08_065T01_9000001796_12132cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12132cztM0_level2_quad_clean.evt
Size (bytes)592,352,640103,576,320
Size564.9 MB 98.8 MB
Events in quadrant A5,311,097677,641
Events in quadrant B5,071,908647,649
Events in quadrant C3,171,007677,379
Events in quadrant D3,915,310650,524

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207363
B0197042
C0142372
D0163852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69451381.987041%
B69456008.639309%
C6945320.460763%
D69461251.799597%

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 7656 6947 12 12 0.16% 0.17%
B 7656 6947 355 355 4.64% 5.11%
C 7656 6947 0 0 0.00% 0.00%
D 7657 6948 68 68 0.89% 0.98%

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 14 63 1934920 11603.39 827 809 166.7
A 1 162 61551 364.41 827 809 166.7
A 13 248 41883 246.42 827 809 166.7
B 4 239 1486655 9961.58 792 773 149.2
B 11 51 147055 980.7 792 773 149.2
B 10 16 115690 770.42 792 773 149.2
C 13 61 5993 27.75 811 814 186.6
C 14 234 3718 15.56 811 814 186.6
C 15 208 3369 13.69 811 814 186.6
D 1 52 269439 1381.68 805 782 194.4
D 13 104 182081 932.4 805 782 194.4
D 8 195 135916 694.98 805 782 194.4

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