ASTROSAT CZTI

Data Quality Report

Orbit 28619

Creation date: 2024-06-27T19:54:05.103873
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/AS1A10_045T06_9000004108_28619cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28619cztM0_level2_quad_clean.evt
Size (bytes)570,484,80071,536,320
Size544.1 MB 68.2 MB
Events in quadrant A3,550,293428,649
Events in quadrant B3,809,368432,308
Events in quadrant C3,734,153421,955
Events in quadrant D5,718,471404,918

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145552
B0153182
C0151014
D0218452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68601121.632653%
B68601582.303207%
C68591692.463916%
D68593404.956991%

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 7840 6860 0 0 0.00% 0.00%
B 7840 6860 24 24 0.31% 0.35%
C 7839 6859 1 1 0.01% 0.01%
D 7839 6859 198 198 2.53% 2.89%

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 13 254 12788 64.33 915 895 184.9
A 15 47 12660 63.63 915 895 184.9
A 3 137 8505 41.16 915 895 184.9
B 10 245 103990 607.29 897 878 169.8
B 10 246 86057 501.67 897 878 169.8
B 4 171 53430 309.51 897 878 169.8
C 14 238 141882 687.56 878 888 205.1
C 3 233 95259 460.2 878 888 205.1
C 7 247 58133 279.16 878 888 205.1
D 1 52 1214877 5866.61 876 856 206.9
D 8 195 828750 4000.7 876 856 206.9
D 2 250 224092 1078.76 876 856 206.9

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