ASTROSAT CZTI

Data Quality Report

Orbit 38069

Creation date: 2024-06-27T21:48:02.997904
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/AS1A11_047T09_9000005362_38069cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38069cztM0_level2_quad_clean.evt
Size (bytes)334,471,68097,917,120
Size319.0 MB 93.4 MB
Events in quadrant A2,869,524671,238
Events in quadrant B2,875,146683,259
Events in quadrant C2,760,141651,713
Events in quadrant D3,470,987594,399

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116903
B0118222
C0113142
D0138572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5206170.326546%
B5206601.152516%
C5206200.384172%
D5206901.728774%

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 7119 5207 3 3 0.04% 0.06%
B 7119 5207 42 42 0.59% 0.81%
C 7119 5207 8 8 0.11% 0.15%
D 7119 5207 86 86 1.21% 1.65%

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 355816 2782.82 633 621 127.6
A 7 3 25919 198.2 633 621 127.6
A 10 248 13630 101.92 633 621 127.6
B 4 171 183623 1504.89 633 616 121.6
B 5 172 53237 432.71 633 616 121.6
B 5 184 44113 357.68 633 616 121.6
C 15 214 215845 1484.77 620 626 145.0
C 3 233 57446 392.0 620 626 145.0
C 0 10 50857 346.54 620 626 145.0
D 1 52 482063 3219.79 611 594 149.5
D 7 55 120629 802.73 611 594 149.5
D 13 200 116391 774.39 611 594 149.5

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