ASTROSAT CZTI

Data Quality Report

Orbit 00569

Creation date: 2024-06-27T13:59:50.267229
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/AS1P01_014T01_9000000080_00569cztM0_level2.evt modeM0/AS1P01_014T01_9000000080_00569cztM0_level2_quad_clean.evt
Size (bytes)99,812,1608,219,520
Size95.2 MB 7.8 MB
Events in quadrant A716,05452,226
Events in quadrant B710,89752,580
Events in quadrant C641,44849,729
Events in quadrant D914,01646,914

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025201
B025070
C023120
D031150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55600.000000%
B55610.179856%
C55600.000000%
D556325.755396%

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 556 556 15 15 2.70% 2.70%
B 556 556 14 14 2.52% 2.52%
C 556 556 10 10 1.80% 1.80%
D 556 556 117 117 21.04% 21.04%

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 0 238 5101 116.42 182 180 42.3
A 13 17 2183 47.39 182 180 42.3
A 13 190 1170 23.42 182 180 42.3
B 4 250 12879 290.13 175 175 43.8
B 8 234 10234 229.72 175 175 43.8
B 15 33 3288 71.09 175 175 43.8
C 3 159 3575 73.44 161 166 46.4
C 1 1 2866 58.17 161 166 46.4
C 15 241 1112 20.38 161 166 46.4
D 13 216 82181 1583.05 160 165 51.8
D 10 167 71520 1377.27 160 165 51.8
D 12 237 57678 1110.1 160 165 51.8

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