ASTROSAT CZTI

Data Quality Report

Orbit 07590

Creation date: 2024-06-27T15:21:22.995100
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/AS1A02_024T01_9000001044_07590cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07590cztM0_level2_quad_clean.evt
Size (bytes)834,721,92076,426,560
Size796.1 MB 72.9 MB
Events in quadrant A3,274,485510,557
Events in quadrant B3,131,779520,284
Events in quadrant C14,068,021327,933
Events in quadrant D4,356,041490,704

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140543
B0138231
C0462981
D0176581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6648721.083032%
B6649871.308467%
C6649475271.469394%
D66492593.895323%

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 6969 6650 0 0 0.00% 0.00%
B 6969 6650 0 0 0.00% 0.00%
C 6969 6650 4306 4306 61.79% 64.75%
D 6969 6650 184 184 2.64% 2.77%

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 15 239 252416 1551.73 785 767 162.2
A 0 226 7509 41.57 785 767 162.2
A 12 194 6858 37.56 785 767 162.2
B 0 214 22361 139.91 795 776 154.3
B 12 111 16078 99.18 795 776 154.3
B 11 111 13058 79.61 795 776 154.3
C 9 68 11955545 95761.71 535 539 124.8
C 8 128 9081 68.42 535 539 124.8
C 1 16 6095 44.5 535 539 124.8
D 5 233 762985 4088.29 756 732 186.4
D 2 152 363110 1943.59 756 732 186.4
D 2 14 358426 1918.46 756 732 186.4

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