ASTROSAT CZTI

Data Quality Report

Orbit 17310

Creation date: 2024-06-27T17:34:49.788340
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_010T02_9000002556_17310cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17310cztM0_level2_quad_clean.evt
Size (bytes)492,186,240115,479,360
Size469.4 MB 110.1 MB
Events in quadrant A3,547,702785,420
Events in quadrant B3,466,153792,746
Events in quadrant C3,375,216732,226
Events in quadrant D4,063,669721,737

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148421
B0146501
C0144051
D0165692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6683941.406554%
B66831081.616041%
C66831271.900344%
D66821121.676145%

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 7938 6683 0 0 0.00% 0.00%
B 7938 6683 1 1 0.01% 0.01%
C 7938 6684 0 0 0.00% 0.00%
D 7937 6683 46 46 0.58% 0.69%

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 0 23 111394 620.65 893 876 178.1
A 0 226 14383 75.85 893 876 178.1
A 3 137 6306 30.49 893 876 178.1
B 12 111 19490 111.18 885 865 167.5
B 11 111 17117 97.01 885 865 167.5
B 14 111 14959 84.13 885 865 167.5
C 14 238 132302 682.59 830 837 192.6
C 3 233 9891 47.01 830 837 192.6
C 13 61 5913 26.36 830 837 192.6
D 5 222 355168 1732.36 846 821 204.5
D 1 52 220571 1074.33 846 821 204.5
D 11 176 174855 850.83 846 821 204.5

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