ASTROSAT CZTI

Data Quality Report

Orbit 08553

Creation date: 2024-06-27T15:34:10.786714
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/AS1G07_060T01_9000001200_08553cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08553cztM0_level2_quad_clean.evt
Size (bytes)401,765,76087,557,760
Size383.2 MB 83.5 MB
Events in quadrant A2,891,862558,608
Events in quadrant B3,033,015571,814
Events in quadrant C2,849,535556,061
Events in quadrant D2,969,120530,104

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128123
B0130982
C0127232
D0134004

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6225170.273092%
B6225410.658635%
C622570.112450%
D6224330.530206%

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 7535 6226 0 0 0.00% 0.00%
B 7535 6226 15 15 0.20% 0.24%
C 7535 6226 0 0 0.00% 0.00%
D 7535 6226 22 22 0.29% 0.35%

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 19563 125.21 743 729 150.4
A 14 111 8191 49.61 743 729 150.4
A 0 226 6875 40.86 743 729 150.4
B 10 16 79839 553.73 749 732 142.9
B 0 214 23308 158.03 749 732 142.9
B 12 111 15661 104.5 749 732 142.9
C 9 54 6956 37.05 726 731 168.0
C 13 61 5565 28.77 726 731 168.0
C 8 128 4936 25.03 726 731 168.0
D 1 52 68934 391.6 711 693 174.3
D 4 95 55257 313.12 711 693 174.3
D 13 122 36627 206.21 711 693 174.3

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