ASTROSAT CZTI

Data Quality Report

Orbit 45535

Creation date: 2024-06-27T23:13:21.105845
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/AS1A13_071T01_9000006104_45535cztM0_level2.fits modeM0/AS1A13_071T01_9000006104_45535cztM0_level2_quad_clean.evt
Size (bytes)130,515,84028,958,400
Size124.5 MB 27.6 MB
Events in quadrant A1,599,746188,852
Events in quadrant B915,146200,596
Events in quadrant C764,103191,324
Events in quadrant D1,410,806165,456

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060971
B039761
C037191
D054781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1787884.924454%
B1787281.566872%
C178750.279799%
D17871206.715165%

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 1787 1787 7 7 0.39% 0.39%
B 1787 1787 18 18 1.01% 1.01%
C 1787 1787 1 1 0.06% 0.06%
D 1787 1787 94 94 5.26% 5.26%

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 842062 20398.01 191 187 41.3
A 13 248 14759 353.07 191 187 41.3
A 0 243 2837 64.21 191 187 41.3
B 5 172 74116 1842.62 194 188 40.1
B 15 201 42323 1050.19 194 188 40.1
B 0 155 12107 297.07 194 188 40.1
C 10 187 29840 648.64 186 186 45.7
C 12 2 8541 182.76 186 186 45.7
C 13 61 1219 22.6 186 186 45.7
D 1 52 336140 7219.43 179 172 46.5
D 5 171 163765 3515.36 179 172 46.5
D 2 249 57897 1240.42 179 172 46.5

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