ASTROSAT CZTI

Data Quality Report

Orbit 44457

Creation date: 2024-06-27T23:03:42.977683
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_072T03_9000006000_44457cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44457cztM0_level2_quad_clean.evt
Size (bytes)398,177,280103,199,040
Size379.7 MB 98.4 MB
Events in quadrant A4,340,484695,263
Events in quadrant B2,866,551717,625
Events in quadrant C3,558,328658,228
Events in quadrant D3,483,637613,960

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180011
B0131171
C0151821
D0150391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6301600.952230%
B6301510.809395%
C63012684.253293%
D63021211.920025%

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 7411 6302 4 4 0.05% 0.06%
B 7411 6302 8 8 0.11% 0.13%
C 7411 6302 234 234 3.16% 3.71%
D 7412 6303 97 97 1.31% 1.54%

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 1612518 11308.41 688 673 142.5
A 14 238 30927 212.26 688 673 142.5
A 8 4 13002 86.5 688 673 142.5
B 4 170 75344 551.61 689 667 135.4
B 0 229 25788 185.56 689 667 135.4
B 12 111 17433 123.84 689 667 135.4
C 12 16 843374 5470.93 658 661 154.0
C 14 254 88947 573.16 658 661 154.0
C 15 208 27092 171.59 658 661 154.0
D 5 235 337886 2037.27 663 643 165.5
D 1 52 241742 1456.47 663 643 165.5
D 13 249 124205 746.43 663 643 165.5

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