ASTROSAT CZTI

Data Quality Report

Orbit 44909

Creation date: 2024-06-27T23:07:53.513735
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_017T02_9000006032_44909cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44909cztM0_level2_quad_clean.evt
Size (bytes)553,242,240117,146,880
Size527.6 MB 111.7 MB
Events in quadrant A6,025,004787,663
Events in quadrant B3,836,248829,259
Events in quadrant C3,321,525813,061
Events in quadrant D6,795,948666,587

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222421
B0155381
C0138411
D0247441

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64593896.022604%
B64601612.492260%
C6460801.238390%
D646084213.034056%

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 7679 6460 128 128 1.67% 1.98%
B 7680 6461 41 41 0.53% 0.63%
C 7680 6461 12 12 0.16% 0.19%
D 7680 6461 575 575 7.49% 8.90%

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 2378259 14252.79 805 790 166.8
A 13 248 517899 3100.04 805 790 166.8
A 0 243 10782 59.9 805 790 166.8
B 15 36 107270 681.25 811 789 156.3
B 3 112 84542 535.84 811 789 156.3
B 0 183 70414 445.45 811 789 156.3
C 14 254 70742 370.32 810 817 188.8
C 15 208 25736 131.97 810 817 188.8
C 5 250 17401 87.83 810 817 188.8
D 1 52 1591013 8244.17 771 750 192.9
D 12 233 598415 3098.39 771 750 192.9
D 13 249 526677 2726.49 771 750 192.9

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