ASTROSAT CZTI

Data Quality Report

Orbit 19196

Creation date: 2024-06-27T17:59:58.711684
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/AS1A05_046T01_9000002838_19196cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19196cztM0_level2_quad_clean.evt
Size (bytes)505,848,96098,078,400
Size482.4 MB 93.5 MB
Events in quadrant A3,357,135618,306
Events in quadrant B3,492,090638,683
Events in quadrant C3,726,918621,296
Events in quadrant D4,263,608599,654

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146242
B0148932
C0153752
D0173762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7073510.721052%
B7073981.385551%
C70731291.823837%
D70731662.346953%

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 7713 7074 0 0 0.00% 0.00%
B 7713 7074 0 0 0.00% 0.00%
C 7713 7074 0 0 0.00% 0.00%
D 7713 7074 65 65 0.84% 0.92%

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 11 29 9986 51.99 868 849 175.7
A 13 254 9591 49.75 868 849 175.7
A 0 226 7448 37.55 868 849 175.7
B 7 220 26240 149.09 874 851 170.3
B 12 111 20480 115.27 874 851 170.3
B 0 189 19975 112.3 874 851 170.3
C 3 233 286074 1421.37 848 853 200.7
C 14 238 131303 650.09 848 853 200.7
C 13 61 5865 24.98 848 853 200.7
D 1 52 663378 3164.85 851 826 209.3
D 10 66 276164 1315.22 851 826 209.3
D 11 176 92473 437.78 851 826 209.3

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