ASTROSAT CZTI

Data Quality Report

Orbit 08528

Creation date: 2024-06-27T15:33:54.222884
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/AS1G07_060T01_9000001200_08528cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08528cztM0_level2_quad_clean.evt
Size (bytes)549,527,04088,715,520
Size524.1 MB 84.6 MB
Events in quadrant A3,848,432542,427
Events in quadrant B3,965,942547,769
Events in quadrant C3,604,486542,264
Events in quadrant D4,691,756509,107

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167403
B0169242
C0162622
D0195222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78272142.734125%
B78272483.168519%
C78271371.750351%
D78274045.161620%

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 9437 7828 19 19 0.20% 0.24%
B 9437 7829 25 25 0.26% 0.32%
C 9437 7830 0 0 0.00% 0.00%
D 9437 7830 230 230 2.44% 2.94%

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 15 223 110940 569.45 946 924 193.2
A 15 239 48315 245.3 946 924 193.2
A 13 248 29418 147.49 946 924 193.2
B 10 16 145691 787.28 946 921 183.9
B 0 214 48384 258.11 946 921 183.9
B 15 255 28227 148.49 946 921 183.9
C 13 61 6923 27.71 922 926 216.4
C 8 222 4643 17.17 922 926 216.4
C 5 220 4190 15.08 922 926 216.4
D 1 52 990859 4418.27 899 874 224.1
D 12 233 238952 1062.53 899 874 224.1
D 2 234 24412 105.05 899 874 224.1

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