ASTROSAT CZTI

Data Quality Report

Orbit 45130

Creation date: 2024-06-27T23:09:46.888159
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_017T02_9000006046_45130cztM0_level2.fits modeM0/AS1A13_017T02_9000006046_45130cztM0_level2_quad_clean.evt
Size (bytes)706,150,080110,050,560
Size673.4 MB 105.0 MB
Events in quadrant A10,793,264582,602
Events in quadrant B3,992,678802,540
Events in quadrant C3,868,879779,291
Events in quadrant D6,907,275648,919

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0371521
B0167431
C0167281
D0255221

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7448234131.431257%
B74493414.577796%
C74492653.557524%
D744995312.793664%

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 7532 7448 1730 1730 22.97% 23.23%
B 7534 7450 46 46 0.61% 0.62%
C 7534 7450 65 65 0.86% 0.87%
D 7534 7450 601 601 7.98% 8.07%

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 15 223 5574451 34190.74 774 756 163.0
A 10 83 2172415 13321.62 774 756 163.0
A 0 243 38227 229.86 774 756 163.0
B 3 112 210309 1171.75 881 855 178.8
B 4 170 83028 459.7 881 855 178.8
B 0 155 65584 362.11 881 855 178.8
C 1 3 156795 749.7 878 885 208.0
C 14 254 125033 596.97 878 885 208.0
C 12 250 74058 351.86 878 885 208.0
D 4 223 1281973 5950.68 846 820 215.3
D 13 249 596973 2769.0 846 820 215.3
D 2 249 450043 2086.54 846 820 215.3

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