ASTROSAT CZTI

Data Quality Report

Orbit 10505

Creation date: 2024-06-27T16:00:16.539250
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/AS1A03_127T02_9000001522_10505cztM0_level2.evt modeM0/AS1A03_127T02_9000001522_10505cztM0_level2_quad_clean.evt
Size (bytes)526,181,760122,224,320
Size501.8 MB 116.6 MB
Events in quadrant A4,200,164806,569
Events in quadrant B4,436,394811,201
Events in quadrant C2,920,921840,744
Events in quadrant D3,943,617796,179

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180877
B0175762
C0131002
D0160892

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6403600.937061%
B64044086.371018%
C6404340.530918%
D6404520.811993%

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 7529 6405 4 4 0.05% 0.06%
B 7529 6405 239 239 3.17% 3.73%
C 7529 6405 0 0 0.00% 0.00%
D 7529 6405 15 15 0.20% 0.23%

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 1145635 7540.01 754 738 151.8
A 3 80 87084 568.65 754 738 151.8
A 15 174 36424 235.02 754 738 151.8
B 4 239 1352654 9636.73 749 731 140.3
B 11 51 63620 448.28 749 731 140.3
B 0 214 31791 221.4 749 731 140.3
C 14 234 12448 68.25 743 745 171.5
C 11 7 5802 29.49 743 745 171.5
C 13 61 5493 27.69 743 745 171.5
D 2 16 389552 2217.85 734 711 175.3
D 8 195 335701 1910.69 734 711 175.3
D 1 52 190526 1082.65 734 711 175.3

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