ASTROSAT CZTI

Data Quality Report

Orbit 31417

Creation date: 2024-06-27T20:28:15.252868
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/AS1T04_026T01_9000004560_31417cztM0_level2.evt modeM0/AS1T04_026T01_9000004560_31417cztM0_level2_quad_clean.evt
Size (bytes)171,990,72040,838,400
Size164.0 MB 38.9 MB
Events in quadrant A1,001,505276,973
Events in quadrant B1,541,709278,167
Events in quadrant C1,138,737265,482
Events in quadrant D1,375,512257,247

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043920
B065422
C046830
D054470

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A219200.000000%
B219230.136861%
C2192462.098540%
D2192542.463504%

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 2192 2192 0 0 0.00% 0.00%
B 2192 2192 0 0 0.00% 0.00%
C 2192 2192 1 1 0.05% 0.05%
D 2192 2192 45 45 2.05% 2.05%

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 3563 61.32 259 254 54.0
A 3 137 2732 45.92 259 254 54.0
A 0 226 2159 35.3 259 254 54.0
B 6 159 525412 10365.88 254 247 50.7
B 0 190 8936 171.51 254 247 50.7
B 12 111 6177 117.05 254 247 50.7
C 14 238 57042 934.64 251 252 60.8
C 10 22 42354 692.91 251 252 60.8
C 3 233 31137 508.3 251 252 60.8
D 8 195 259999 4230.47 253 246 61.4
D 12 218 120473 1958.08 253 246 61.4
D 2 250 26292 424.2 253 246 61.4

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