ASTROSAT CZTI

Data Quality Report

Orbit 45008

Creation date: 2024-06-27T23:08:57.807357
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_020T01_9000006040_45008cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45008cztM0_level2_quad_clean.evt
Size (bytes)427,749,120102,669,120
Size407.9 MB 97.9 MB
Events in quadrant A5,219,115676,566
Events in quadrant B3,291,398702,721
Events in quadrant C2,762,762687,882
Events in quadrant D4,086,835615,613

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199841
B0137302
C0124541
D0161761

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61001913.131148%
B6100931.524590%
C6100270.442623%
D61001973.229508%

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 7200 6101 55 55 0.76% 0.90%
B 7200 6101 36 36 0.50% 0.59%
C 7200 6101 0 0 0.00% 0.00%
D 7200 6101 128 128 1.78% 2.10%

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 10 83 2147744 14800.45 697 685 145.1
A 13 248 359040 2470.27 697 685 145.1
A 10 248 10922 70.57 697 685 145.1
B 5 255 117803 857.53 696 677 136.6
B 0 189 75174 545.43 696 677 136.6
B 5 172 73978 536.67 696 677 136.6
C 14 254 33099 198.82 697 702 162.9
C 1 3 5808 31.33 697 702 162.9
C 3 233 5368 28.63 697 702 162.9
D 1 52 348841 2025.17 687 667 171.9
D 13 249 186720 1082.18 687 667 171.9
D 13 29 121177 700.95 687 667 171.9

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