ASTROSAT CZTI

Data Quality Report

Orbit 20240717_A13_071T01_9000006340_level2

Creation date: 2024-07-24T17:10:58.113730
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/AS1A13_071T01_9000006340cztM0_level2.fits modeM0/AS1A13_071T01_9000006340cztM0_level2_quad_clean.evt
Size (bytes)2,507,054,4002,660,832,000
Size2.3 GB 2.5 GB
Events in quadrant A14,503,19415,572,674
Events in quadrant B14,277,78015,992,895
Events in quadrant C14,934,51015,656,019
Events in quadrant D12,743,81613,915,994

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011467310
B06726540
C06044810
D07054890

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03540
B03540
C03540
D03540

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057520
B057520
C057520
D057520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A284021194346.842452%
B284022114034.014830%
C28402232541.145686%
D284022114654.036659%

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 323778 283982 0 0 0.00% 0.00%
B 323780 283937 0 0 0.00% 0.00%
C 323780 284009 0 0 0.00% 0.00%
D 323780 283816 0 0 0.00% 0.00%

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 7 110 11621 8.35 3777 3515 971.1
A 0 29 10974 7.68 3777 3515 971.1
A 14 95 10711 7.41 3777 3515 971.1
B 2 9 13602 13.58 3770 3585 737.3
B 2 8 10992 10.04 3770 3585 737.3
B 3 17 10304 9.11 3770 3585 737.3
C 3 202 11384 7.54 3947 3650 1025.4
C 1 81 11323 7.48 3947 3650 1025.4
C 3 203 11089 7.25 3947 3650 1025.4
D 10 189 9204 5.8 3669 3322 1013.4
D 15 47 9143 5.74 3669 3322 1013.4
D 15 63 9141 5.74 3669 3322 1013.4

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