ASTROSAT CZTI

Data Quality Report

Orbit 38327

Creation date: 2024-06-27T21:51:17.523359
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/AS1C07_001T12_9000005372_38327cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38327cztM0_level2_quad_clean.evt
Size (bytes)204,036,48035,406,720
Size194.6 MB 33.8 MB
Events in quadrant A1,126,241247,258
Events in quadrant B986,978254,329
Events in quadrant C1,037,178249,530
Events in quadrant D4,217,830151,987

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049131
B047181
C047171
D0141561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A234340.170721%
B234330.128041%
C234310.042680%
D234392539.479300%

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 3657 2344 2 2 0.05% 0.09%
B 3657 2344 0 0 0.00% 0.00%
C 3657 2344 0 0 0.00% 0.00%
D 3657 2344 638 638 17.45% 27.22%

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 10 83 172969 3402.55 242 238 50.8
A 12 189 9072 174.02 242 238 50.8
A 13 6 6781 128.89 242 238 50.8
B 0 229 11270 225.83 242 236 48.9
B 12 18 6956 137.54 242 236 48.9
B 0 156 6848 135.33 242 236 48.9
C 15 214 101027 1779.58 236 237 56.6
C 12 249 10630 183.5 236 237 56.6
C 0 10 3299 54.06 236 237 56.6
D 10 203 2119641 42188.2 199 193 50.2
D 2 16 1163422 23154.4 199 193 50.2
D 1 47 60963 1209.64 199 193 50.2

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