ASTROSAT CZTI

Data Quality Report

Orbit 16007

Creation date: 2024-06-27T17:16:42.768437
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/AS1T02_090T01_9000002364_16007cztM0_level2.evt modeM0/AS1T02_090T01_9000002364_16007cztM0_level2_quad_clean.evt
Size (bytes)508,561,92071,032,320
Size485.0 MB 67.7 MB
Events in quadrant A3,468,122437,052
Events in quadrant B3,861,041437,506
Events in quadrant C3,693,356420,010
Events in quadrant D3,947,240411,709

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142323
B0155192
C0150392
D0158512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6368731.146357%
B63681482.324121%
C63681201.884422%
D63681933.030779%

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 7634 6369 1 1 0.01% 0.02%
B 7634 6369 55 55 0.72% 0.86%
C 7634 6369 7 7 0.09% 0.11%
D 7634 6369 115 115 1.51% 1.81%

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 15 157 33354 183.18 889 873 177.3
A 13 210 9149 46.67 889 873 177.3
A 0 226 8158 41.08 889 873 177.3
B 7 220 183947 1113.88 879 862 164.4
B 5 65 98209 592.26 879 862 164.4
B 10 245 47486 283.66 879 862 164.4
C 3 233 240234 1217.7 849 858 196.6
C 14 238 132888 671.63 849 858 196.6
C 9 54 7264 32.59 849 858 196.6
D 12 218 554758 2634.76 861 839 210.2
D 2 152 63759 299.28 861 839 210.2
D 2 234 26075 120.04 861 839 210.2

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