ASTROSAT CZTI

Data Quality Report

Orbit 04243

Creation date: 2024-06-27T14:39:16.073342
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/AS1G05_240T01_9000000536_04243cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04243cztM0_level2_quad_clean.evt
Size (bytes)697,328,64057,602,880
Size665.0 MB 54.9 MB
Events in quadrant A3,717,624331,272
Events in quadrant B3,328,449335,961
Events in quadrant C3,030,899325,369
Events in quadrant D10,591,618286,594

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153973
B0142352
C0136762
D0360202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66552303.456048%
B66551151.728024%
C6655570.856499%
D6655192528.925620%

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 7585 6656 105 105 1.38% 1.58%
B 7585 6657 7 7 0.09% 0.11%
C 7585 6657 2 2 0.03% 0.03%
D 7585 6657 1903 1903 25.09% 28.59%

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 0 50 345225 2115.3 793 774 162.8
A 14 111 189720 1160.33 793 774 162.8
A 8 15 51974 314.42 793 774 162.8
B 8 3 93780 597.7 805 787 155.6
B 4 81 34795 218.58 805 787 155.6
B 15 204 31937 200.21 805 787 155.6
C 10 65 13928 73.27 767 772 179.6
C 1 0 13539 71.1 767 772 179.6
C 13 61 6433 31.53 767 772 179.6
D 2 63 6812206 39264.15 704 683 173.5
D 2 232 544072 3132.3 704 683 173.5
D 11 132 330804 1902.94 704 683 173.5

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