ASTROSAT CZTI

Data Quality Report

Orbit 48513

Creation date: 2024-09-17T01:20:00.691754
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/AS1A13_037T01_9000006432_48513cztM0_level2.fits modeM0/AS1A13_037T01_9000006432_48513cztM0_level2_quad_clean.evt
Size (bytes)1,362,453,120291,792,960
Size1.3 GB 278.3 MB
Events in quadrant A19,471,3231,922,603
Events in quadrant B9,760,0331,988,593
Events in quadrant C8,119,1471,942,661
Events in quadrant D11,598,5831,657,240

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0722802
B0430573
C0393992
D0493852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03880
D03880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A192077253.774665%
B192075752.993700%
C192071330.692456%
D1920710545.487583%

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 20162 19209 31 31 0.15% 0.16%
B 20162 19209 187 187 0.93% 0.97%
C 20162 19209 2 2 0.01% 0.01%
D 20162 19209 776 776 3.85% 4.04%

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 10934730 25374.6 2066 2015 430.9
A 12 189 463471 1071.03 2066 2015 430.9
A 13 254 36819 80.78 2066 2015 430.9
B 12 16 683685 1663.51 2062 1996 409.8
B 5 255 582981 1417.76 2062 1996 409.8
B 0 186 189029 456.41 2062 1996 409.8
C 14 67 28142 53.44 2059 2066 488.0
C 3 233 28108 53.37 2059 2066 488.0
C 12 250 25550 48.12 2059 2066 488.0
D 2 165 3269199 6481.42 2016 1951 504.1
D 2 249 278758 549.12 2016 1951 504.1
D 2 234 99250 193.02 2016 1951 504.1

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