ASTROSAT CZTI

Data Quality Report

Orbit 13190

Creation date: 2024-06-27T16:37:52.412731
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/AS1T02_012T08_9000001960_13190cztM0_level2.evt modeM0/AS1T02_012T08_9000001960_13190cztM0_level2_quad_clean.evt
Size (bytes)464,290,56066,081,600
Size442.8 MB 63.0 MB
Events in quadrant A2,260,952439,635
Events in quadrant B3,488,053418,256
Events in quadrant C2,160,949437,856
Events in quadrant D5,817,641360,265

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100701
B0136101
C0100181
D0206341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49061172.384835%
B490652910.782715%
C4906841.712189%
D4906105021.402364%

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 5437 4909 0 0 0.00% 0.00%
B 5437 4909 297 297 5.46% 6.05%
C 5437 4909 1 1 0.02% 0.02%
D 5437 4909 879 879 16.17% 17.91%

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 4 2 22117 184.95 566 552 116.6
A 8 15 19197 159.9 566 552 116.6
A 1 162 19027 158.45 566 552 116.6
B 4 239 1165599 11429.83 530 516 101.9
B 0 197 97453 950.98 530 516 101.9
B 3 64 70566 687.21 530 516 101.9
C 15 208 12132 89.84 551 553 128.9
C 13 61 3883 25.84 551 553 128.9
C 8 222 1723 9.08 551 553 128.9
D 13 122 2145990 17533.83 505 490 122.4
D 1 52 1667951 13627.11 505 490 122.4
D 13 104 35904 289.42 505 490 122.4

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