ASTROSAT CZTI

Data Quality Report

Orbit 11113

Creation date: 2024-06-27T16:08:26.714922
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/AS1G08_071T02_9000001620_11113cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11113cztM0_level2_quad_clean.evt
Size (bytes)581,014,08085,340,160
Size554.1 MB 81.4 MB
Events in quadrant A5,828,100518,284
Events in quadrant B3,456,055556,477
Events in quadrant C2,920,441549,095
Events in quadrant D4,956,050511,766

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217303
B0144612
C0130912
D0189062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64376059.398788%
B6437951.475843%
C6437150.233028%
D64374506.990834%

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 7547 6438 500 500 6.63% 7.77%
B 7547 6438 42 42 0.56% 0.65%
C 7547 6438 0 0 0.00% 0.00%
D 7547 6438 399 399 5.29% 6.20%

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 8 5 2583835 17217.62 736 721 150.0
A 8 15 346207 2302.82 736 721 150.0
A 11 29 31220 203.29 736 721 150.0
B 4 239 259636 1757.24 774 756 147.3
B 15 204 76640 515.09 774 756 147.3
B 0 219 25714 169.41 774 756 147.3
C 13 61 5648 28.09 747 753 174.2
C 8 222 2765 11.55 747 753 174.2
C 1 3 2486 9.95 747 753 174.2
D 10 253 957383 5495.51 717 696 174.1
D 1 52 766693 4400.12 717 696 174.1
D 8 195 244578 1400.93 717 696 174.1

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