ASTROSAT CZTI

Data Quality Report

Orbit 48020

Creation date: 2024-08-14T19:56:04.650435
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/AS1T05_218T01_9000006386_48020cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48020cztM0_level2_quad_clean.evt
Size (bytes)139,377,60034,508,160
Size132.9 MB 32.9 MB
Events in quadrant A2,029,896226,356
Events in quadrant B935,661236,062
Events in quadrant C1,048,113221,012
Events in quadrant D970,795201,723

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073690
B044370
C047150
D046050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A221470.316170%
B221520.090293%
C2215120.541761%
D221590.406321%

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 2214 2214 1 1 0.05% 0.05%
B 2215 2215 0 0 0.00% 0.00%
C 2215 2215 7 7 0.32% 0.32%
D 2215 2215 8 8 0.36% 0.36%

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 10 83 1122821 22292.18 233 228 50.4
A 7 3 3324 61.48 233 228 50.4
A 13 254 3291 60.82 233 228 50.4
B 12 111 5934 118.25 234 226 48.3
B 11 111 5675 112.88 234 226 48.3
B 14 111 5430 107.81 234 226 48.3
C 12 2 62944 1112.39 233 234 56.4
C 14 254 41536 732.64 233 234 56.4
C 14 67 13203 230.05 233 234 56.4
D 11 224 63454 1075.77 230 223 58.8
D 14 34 22402 377.34 230 223 58.8
D 2 234 10910 181.82 230 223 58.8

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