ASTROSAT CZTI

Data Quality Report

Orbit 14606

Creation date: 2024-06-27T16:57:25.563495
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/AS1G08_059T01_9000002150_14606cztM0_level2.evt modeM0/AS1G08_059T01_9000002150_14606cztM0_level2_quad_clean.evt
Size (bytes)285,462,72037,794,240
Size272.2 MB 36.0 MB
Events in quadrant A3,037,803229,528
Events in quadrant B1,709,780232,919
Events in quadrant C1,871,381229,586
Events in quadrant D1,808,791225,482

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110943
B070402
C076632
D073712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31843039.516332%
B3184752.355528%
C3184501.570352%
D3184371.162060%

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 4330 3187 3 3 0.07% 0.09%
B 4330 3187 2 2 0.05% 0.06%
C 4330 3187 4 4 0.09% 0.13%
D 4330 3187 19 19 0.44% 0.60%

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 23 1301486 15381.35 408 398 84.6
A 0 226 82749 973.55 408 398 84.6
A 1 162 34703 405.55 408 398 84.6
B 0 205 18372 223.08 417 407 80.5
B 0 189 16943 205.34 417 407 80.5
B 0 214 14434 174.18 417 407 80.5
C 3 233 279922 2943.86 405 407 94.9
C 14 234 11601 117.9 405 407 94.9
C 13 61 2877 26.01 405 407 94.9
D 10 199 105020 1076.78 405 395 97.2
D 12 110 81282 832.48 405 395 97.2
D 2 152 46327 472.72 405 395 97.2

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