ASTROSAT CZTI

Data Quality Report

Orbit 29180

Creation date: 2024-06-27T20:01:10.534278
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/AS1A10_099T01_9000004184_29180cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29180cztM0_level2_quad_clean.evt
Size (bytes)271,788,48031,602,240
Size259.2 MB 30.1 MB
Events in quadrant A1,898,730181,316
Events in quadrant B1,976,945181,943
Events in quadrant C1,918,710173,833
Events in quadrant D2,198,065171,680

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078101
B081301
C079061
D088931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3493100.286287%
B3493190.543945%
C3493310.887489%
D3493260.744346%

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 3493 3492 0 0 0.00% 0.00%
B 3493 3492 2 2 0.06% 0.06%
C 3493 3492 0 0 0.00% 0.00%
D 3493 3493 12 12 0.34% 0.34%

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 13 254 6646 62.51 491 483 98.6
A 3 137 4272 38.43 491 483 98.6
A 0 226 4241 38.12 491 483 98.6
B 0 183 64621 703.31 483 473 91.2
B 10 245 12855 135.75 483 473 91.2
B 12 111 10633 111.39 483 473 91.2
C 14 238 77276 712.87 466 470 107.7
C 3 233 15763 141.94 466 470 107.7
C 2 114 8129 71.08 466 470 107.7
D 8 195 186334 1653.88 472 460 112.4
D 1 52 184253 1635.37 472 460 112.4
D 13 153 23541 205.37 472 460 112.4

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