ASTROSAT CZTI

Data Quality Report

Orbit 47411

Creation date: 2024-07-04T18:43:57.043078
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_053T01_9000006326_47411cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47411cztM0_level2_quad_clean.evt
Size (bytes)1,564,966,080343,310,400
Size1.5 GB 327.4 MB
Events in quadrant A21,421,1662,264,108
Events in quadrant B10,301,4642,329,611
Events in quadrant C10,191,1982,269,514
Events in quadrant D14,314,3952,014,873

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0792315
B0460272
C0468115
D0583822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04440
B04440
C04440
D04440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A220246943.151108%
B220264422.006719%
C220243681.670904%
D2202613966.337964%

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 22635 22025 58 58 0.26% 0.26%
B 22636 22027 26 26 0.11% 0.12%
C 22636 22026 112 112 0.49% 0.51%
D 22636 22027 1105 1105 4.88% 5.02%

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 11082374 22208.21 2404 2349 498.9
A 9 191 989460 1978.51 2404 2349 498.9
A 14 235 39084 73.63 2404 2349 498.9
B 0 198 163650 342.61 2406 2323 470.9
B 5 32 145591 304.26 2406 2323 470.9
B 12 48 140061 292.51 2406 2323 470.9
C 0 207 777479 1388.62 2389 2396 558.2
C 3 233 53199 91.02 2389 2396 558.2
C 12 2 29889 49.26 2389 2396 558.2
D 12 33 1580773 2664.95 2357 2277 592.3
D 2 165 1561691 2632.73 2357 2277 592.3
D 2 249 1375800 2318.89 2357 2277 592.3

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