ASTROSAT CZTI

Data Quality Report

Orbit 13198

Creation date: 2024-06-27T16:37:35.688930
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/AS1A04_104T04_9000001966_13198cztM0_level2.evt modeM0/AS1A04_104T04_9000001966_13198cztM0_level2_quad_clean.evt
Size (bytes)608,463,36092,854,080
Size580.3 MB 88.6 MB
Events in quadrant A3,371,397598,376
Events in quadrant B4,313,492596,388
Events in quadrant C3,301,641619,351
Events in quadrant D6,987,678531,316

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143423
B0172542
C0142372
D0253612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6693640.956223%
B66934727.052144%
C6693590.881518%
D6693123318.422232%

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 9024 6696 0 0 0.00% 0.00%
B 9024 6696 204 204 2.26% 3.05%
C 9024 6696 0 0 0.00% 0.00%
D 9024 6696 834 834 9.24% 12.46%

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 12 189 46361 264.47 851 835 172.1
A 1 162 16066 88.48 851 835 172.1
A 8 15 15602 85.78 851 835 172.1
B 4 239 795617 5047.08 833 814 157.5
B 3 64 145953 921.65 833 814 157.5
B 0 219 35975 223.28 833 814 157.5
C 13 61 6132 27.14 845 852 194.5
C 14 234 3720 14.74 845 852 194.5
C 15 208 3117 11.64 845 852 194.5
D 13 122 3821118 20640.52 767 747 185.1
D 1 52 174017 936.13 767 747 185.1
D 2 234 34072 180.05 767 747 185.1

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