ASTROSAT CZTI

Data Quality Report

Orbit 45589

Creation date: 2024-06-27T23:13:56.908784
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_071T04_9000006110_45589cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45589cztM0_level2_quad_clean.evt
Size (bytes)456,747,840108,970,560
Size435.6 MB 103.9 MB
Events in quadrant A5,442,383736,949
Events in quadrant B3,339,741753,724
Events in quadrant C2,935,992723,353
Events in quadrant D4,713,290657,275

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197874
B0138852
C01304210
D0181572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61311642.674931%
B61321802.935421%
C6128600.979112%
D61322093.408350%

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 7316 6133 2 2 0.03% 0.03%
B 7317 6134 75 75 1.03% 1.22%
C 7317 6131 33 33 0.45% 0.54%
D 7317 6134 156 156 2.13% 2.54%

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 2554598 17235.01 726 711 148.2
A 0 243 43288 287.33 726 711 148.2
A 2 79 27931 183.7 726 711 148.2
B 15 201 256805 1864.64 716 697 137.3
B 5 172 84424 609.59 716 697 137.3
B 5 171 38367 274.26 716 697 137.3
C 14 254 183401 1111.68 703 707 164.3
C 12 2 10400 58.98 703 707 164.3
C 13 61 4772 24.74 703 707 164.3
D 1 52 889768 5074.66 704 682 175.2
D 2 249 590935 3369.01 704 682 175.2
D 11 241 325207 1852.3 704 682 175.2

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