ASTROSAT CZTI

Data Quality Report

Orbit 42330

Creation date: 2024-06-27T22:39:03.968006
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/AS1C07_001T10_9000005796_42330cztM0_level2.fits modeM0/AS1C07_001T10_9000005796_42330cztM0_level2_quad_clean.evt
Size (bytes)488,692,80084,813,120
Size466.1 MB 80.9 MB
Events in quadrant A4,287,617613,884
Events in quadrant B2,644,988621,486
Events in quadrant C2,492,317606,165
Events in quadrant D8,274,852374,663

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162005
B0112022
C0103772
D0280442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50231082.150109%
B5023490.975513%
C502390.179176%
D5023199039.617758%

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 7147 5024 85 85 1.19% 1.69%
B 7147 5024 30 30 0.42% 0.60%
C 7147 5024 7 7 0.10% 0.14%
D 7147 5024 1819 1819 25.45% 36.21%

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 15 223 1369458 12060.92 562 551 113.5
A 10 83 623477 5488.36 562 551 113.5
A 13 248 82843 725.04 562 551 113.5
B 0 229 147020 1392.91 560 546 105.2
B 3 112 101342 958.53 560 546 105.2
B 5 172 58021 546.56 560 546 105.2
C 15 214 215776 1669.27 561 565 128.9
C 15 159 53970 414.23 561 565 128.9
C 15 111 25121 190.47 561 565 128.9
D 5 222 4528641 40413.63 457 443 112.0
D 1 52 680947 6073.42 457 443 112.0
D 5 32 329664 2938.26 457 443 112.0

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