ASTROSAT CZTI

Data Quality Report

Orbit 07525

Creation date: 2024-06-27T15:20:49.654991
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/AS1G06_076T01_9000001038_07525cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07525cztM0_level2_quad_clean.evt
Size (bytes)494,369,28070,128,000
Size471.5 MB 66.9 MB
Events in quadrant A3,377,688421,585
Events in quadrant B3,437,635427,000
Events in quadrant C3,572,367410,142
Events in quadrant D4,127,383395,523

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143753
B0144562
C0150162
D0166852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67311191.767939%
B67311281.901649%
C67311261.871936%
D67322083.089721%

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 7941 6731 0 0 0.00% 0.00%
B 7941 6731 0 0 0.00% 0.00%
C 7941 6731 14 14 0.18% 0.21%
D 7942 6732 80 80 1.01% 1.19%

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 14 14220 76.55 874 856 174.6
A 0 226 8403 43.23 874 856 174.6
A 12 194 7653 38.94 874 856 174.6
B 0 214 26794 159.1 874 854 163.0
B 12 111 15824 91.82 874 854 163.0
B 0 213 15436 89.44 874 854 163.0
C 9 68 199291 1034.31 839 845 191.9
C 8 229 54099 277.56 839 845 191.9
C 1 16 35812 182.25 839 845 191.9
D 2 152 288256 1416.27 840 813 203.0
D 12 221 195114 957.35 840 813 203.0
D 2 14 114135 558.35 840 813 203.0

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