ASTROSAT CZTI

Data Quality Report

Orbit 42522

Creation date: 2024-06-27T22:41:10.887252
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/AS1A07_041T01_9000005808_42522cztM0_level2.fits modeM0/AS1A07_041T01_9000005808_42522cztM0_level2_quad_clean.evt
Size (bytes)295,663,68091,391,040
Size282.0 MB 87.2 MB
Events in quadrant A2,965,503603,952
Events in quadrant B2,437,424617,647
Events in quadrant C2,551,250599,184
Events in quadrant D2,551,409553,024

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123112
B0114162
C0113162
D0118562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5627160.284343%
B562860.106610%
C562830.053305%
D5628330.586354%

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 8823 5629 7 7 0.08% 0.12%
B 8824 5630 1 1 0.01% 0.02%
C 8824 5630 0 0 0.00% 0.00%
D 8824 5630 28 28 0.32% 0.50%

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 556516 4539.8 598 585 122.5
A 13 248 37228 299.23 598 585 122.5
A 12 189 35080 281.69 598 585 122.5
B 0 245 46663 397.52 593 576 115.9
B 5 255 21573 181.11 593 576 115.9
B 5 172 18346 153.27 593 576 115.9
C 15 214 250608 1823.13 583 586 137.1
C 9 54 24346 173.25 583 586 137.1
C 3 233 4713 30.09 583 586 137.1
D 13 249 93438 656.46 583 566 141.5
D 12 6 60597 424.32 583 566 141.5
D 1 52 45246 315.82 583 566 141.5

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