ASTROSAT CZTI

Data Quality Report

Orbit 14136

Creation date: 2024-06-27T16:50:49.080508
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/AS1A04_218T04_9000002086_14136cztM0_level2.evt modeM0/AS1A04_218T04_9000002086_14136cztM0_level2_quad_clean.evt
Size (bytes)166,691,52028,396,800
Size159.0 MB 27.1 MB
Events in quadrant A983,273181,248
Events in quadrant B1,097,061180,330
Events in quadrant C1,001,124184,229
Events in quadrant D1,834,395173,953

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0402111
B043656
C039733
D0685511

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042
B042
C040
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1915190.992167%
B1917211.095462%
C191830.156413%
D19161156.002088%

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 1922 1920 0 0 0.00% 0.00%
B 1924 1923 0 0 0.00% 0.00%
C 1927 1923 0 0 0.00% 0.00%
D 1927 1922 72 72 3.74% 3.75%

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 12 189 26106 490.4 242 236 52.8
A 8 15 17329 324.02 242 236 52.8
A 12 96 6261 114.21 242 236 52.8
B 10 244 117400 2388.95 242 234 49.0
B 0 189 11920 238.26 242 234 49.0
B 3 209 10966 218.81 242 234 49.0
C 3 233 56453 964.67 241 242 58.3
C 13 61 1659 24.32 241 242 58.3
C 10 22 1534 22.17 241 242 58.3
D 10 172 700616 12185.17 235 229 57.5
D 8 195 125865 2185.79 235 229 57.5
D 1 52 38143 659.62 235 229 57.5

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