ASTROSAT CZTI

Data Quality Report

Orbit 09758

Creation date: 2024-06-27T15:50:17.841199
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_080T01_9000001392_09758cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09758cztM0_level2_quad_clean.evt
Size (bytes)418,924,80073,779,840
Size399.5 MB 70.4 MB
Events in quadrant A2,927,852452,223
Events in quadrant B3,040,251451,765
Events in quadrant C2,908,233451,923
Events in quadrant D3,380,622437,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142551299
B0143961291
C0142861267
D0158071540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0101
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014016
B01408
C014010
D014016

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63011171.856848%
B63161231.947435%
C63141111.757998%
D62891262.003498%

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 7664 6761 0 0 0.00% 0.00%
B 7664 6775 0 0 0.00% 0.00%
C 7664 6758 0 0 0.00% 0.00%
D 7664 6764 10 10 0.13% 0.15%

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 0 226 7006 40.7 757 738 154.0
A 12 194 6123 34.97 757 738 154.0
A 15 239 5859 33.25 757 738 154.0
B 0 214 33985 228.74 761 742 145.3
B 0 219 21714 144.31 761 742 145.3
B 12 111 16322 107.2 761 742 145.3
C 13 61 5534 27.77 744 745 172.5
C 8 222 3621 16.68 744 745 172.5
C 12 4 2377 9.46 744 745 172.5
D 1 52 493415 2750.13 733 713 179.2
D 2 152 49696 273.41 733 713 179.2
D 2 234 21467 115.84 733 713 179.2

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