ASTROSAT CZTI

Data Quality Report

Orbit 41324

Creation date: 2024-06-27T22:27:35.858743
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/AS1A12_037T01_9000005652_41324cztM0_level2.fits modeM0/AS1A12_037T01_9000005652_41324cztM0_level2_quad_clean.evt
Size (bytes)454,872,960119,790,720
Size433.8 MB 114.2 MB
Events in quadrant A3,926,718810,074
Events in quadrant B3,828,682817,854
Events in quadrant C3,984,922764,013
Events in quadrant D4,522,795720,333

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163303
B0163812
C0165432
D0185892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7397200.270380%
B7397971.311342%
C73972172.933622%
D73971892.555090%

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 10381 7399 6 6 0.06% 0.08%
B 10381 7399 61 61 0.59% 0.82%
C 10381 7399 208 208 2.00% 2.81%
D 10381 7399 186 186 1.79% 2.51%

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 636551 3778.48 819 802 168.3
A 12 189 82273 484.21 819 802 168.3
A 2 79 42077 245.31 819 802 168.3
B 5 255 416483 2628.71 810 788 158.1
B 0 190 174647 1099.42 810 788 158.1
B 0 155 25661 157.29 810 788 158.1
C 0 10 618848 3383.75 780 782 182.7
C 15 214 309490 1690.09 780 782 182.7
C 8 222 14087 72.84 780 782 182.7
D 1 52 791932 4105.86 787 764 192.7
D 2 249 178046 920.03 787 764 192.7
D 2 120 138087 712.65 787 764 192.7

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