ASTROSAT CZTI

Data Quality Report

Orbit 09586

Creation date: 2024-06-27T15:48:30.230328
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/AS1G07_052T01_9000001362_09586cztM0_level2.evt modeM0/AS1G07_052T01_9000001362_09586cztM0_level2_quad_clean.evt
Size (bytes)169,320,96027,751,680
Size161.5 MB 26.5 MB
Events in quadrant A923,829188,248
Events in quadrant B781,764197,080
Events in quadrant C775,646190,710
Events in quadrant D2,534,849144,867

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0366
C0364
D0362

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04313475
B03658282
C03617247
D0107472217

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1621221.357187%
B166620.120048%
C168120.118977%
D146561742.116041%

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 1803 1756 0 0 0.00% 0.00%
B 1804 1780 0 0 0.00% 0.00%
C 1804 1776 0 0 0.00% 0.00%
D 1803 1662 498 498 27.62% 29.96%

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 1 162 74939 1817.61 191 187 41.1
A 1 178 40261 974.41 191 187 41.1
A 1 161 37388 904.55 191 187 41.1
B 12 111 4468 105.25 199 194 40.6
B 0 189 4108 96.38 199 194 40.6
B 11 111 3671 85.62 199 194 40.6
C 13 61 1448 25.58 198 199 48.8
C 7 235 536 6.9 198 199 48.8
C 12 4 510 6.37 198 199 48.8
D 1 52 1936023 46360.24 153 150 41.8
D 2 234 4993 115.98 153 150 41.8
D 8 195 4418 102.21 153 150 41.8

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