ASTROSAT CZTI

Data Quality Report

Orbit 16934

Creation date: 2024-06-27T17:29:41.246613
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/AS1T03_013T01_9000002514_16934cztM0_level2.evt modeM0/AS1T03_013T01_9000002514_16934cztM0_level2_quad_clean.evt
Size (bytes)619,381,44094,086,720
Size590.7 MB 89.7 MB
Events in quadrant A4,847,639628,841
Events in quadrant B3,366,017641,965
Events in quadrant C3,822,732600,237
Events in quadrant D6,285,397528,434

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03708418446
B02771613763
C03141715612
D04594122873

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03116
B03216
C03216
D03216

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258128
B0258128
C0258128
D0258128

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A644566610.333592%
B64441241.924271%
C6444891.381130%
D644496314.944134%

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 7726 6447 457 457 5.92% 7.09%
B 7725 6446 44 44 0.57% 0.68%
C 7725 6446 0 0 0.00% 0.00%
D 7725 6446 712 712 9.22% 11.05%

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 15 174 1800530 11626.64 784 770 154.8
A 0 23 30278 190.62 784 770 154.8
A 0 226 8812 51.95 784 770 154.8
B 15 35 192724 1290.4 803 785 148.7
B 12 111 17452 112.05 803 785 148.7
B 11 111 14933 95.12 803 785 148.7
C 3 233 731373 4207.08 760 766 173.7
C 14 238 119855 685.75 760 766 173.7
C 5 112 6329 32.03 760 766 173.7
D 1 52 3520476 20627.02 712 692 170.6
D 2 152 47932 276.84 712 692 170.6
D 2 234 24744 140.95 712 692 170.6

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