ASTROSAT CZTI

Data Quality Report

Orbit 43059

Creation date: 2024-06-27T22:47:29.630977
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/AS1A09_006T09_9000005842_43059cztM0_level2.fits modeM0/AS1A09_006T09_9000005842_43059cztM0_level2_quad_clean.evt
Size (bytes)377,573,76095,641,920
Size360.1 MB 91.2 MB
Events in quadrant A3,522,472633,114
Events in quadrant B2,987,359642,442
Events in quadrant C2,820,604642,765
Events in quadrant D4,188,719566,901

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142502
B0131802
C0122023
D0166712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5876991.684820%
B58761833.114364%
C5875120.204255%
D58753045.174468%

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 7188 5877 61 61 0.85% 1.04%
B 7188 5877 116 116 1.61% 1.97%
C 7187 5876 2 2 0.03% 0.03%
D 7187 5876 242 242 3.37% 4.12%

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 613655 4740.57 632 620 129.3
A 15 237 340535 2628.54 632 620 129.3
A 12 189 63816 488.69 632 620 129.3
B 5 255 414493 3419.68 624 608 121.0
B 0 229 60659 496.17 624 608 121.0
B 4 171 33623 272.78 624 608 121.0
C 15 214 258419 1739.98 626 629 148.2
C 14 254 99107 664.69 626 629 148.2
C 0 207 9399 59.19 626 629 148.2
D 1 52 1315043 8786.01 608 590 149.6
D 13 249 170722 1137.19 608 590 149.6
D 2 16 152487 1015.3 608 590 149.6

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