ASTROSAT CZTI

Data Quality Report

Orbit 10793

Creation date: 2024-06-27T16:03:58.555037
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/AS1A03_071T01_9000001562_10793cztM0_level2.evt modeM0/AS1A03_071T01_9000001562_10793cztM0_level2_quad_clean.evt
Size (bytes)106,848,00013,014,720
Size101.9 MB 12.4 MB
Events in quadrant A714,67572,621
Events in quadrant B974,25973,787
Events in quadrant C680,51573,844
Events in quadrant D770,65670,893

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028922
B037721
C028201
D030831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A136640.292826%
B1366765.563690%
C136640.292826%
D136660.439239%

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 1366 1366 0 0 0.00% 0.00%
B 1366 1366 39 39 2.86% 2.86%
C 1366 1366 0 0 0.00% 0.00%
D 1366 1366 2 2 0.15% 0.15%

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 8 15 3547 86.3 184 181 39.0
A 0 226 1724 39.56 184 181 39.0
A 12 194 1485 33.43 184 181 39.0
B 4 239 218706 6061.09 179 175 36.1
B 0 187 36588 1009.94 179 175 36.1
B 0 219 12681 346.86 179 175 36.1
C 14 234 2123 47.21 173 174 41.3
C 12 4 1850 40.59 173 174 41.3
C 13 61 1286 26.93 173 174 41.3
D 8 195 58328 1335.39 175 170 43.6
D 12 233 17966 408.62 175 170 43.6
D 1 52 15057 341.83 175 170 43.6

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