ASTROSAT CZTI

Data Quality Report

Orbit 41585

Creation date: 2024-06-27T22:30:24.716795
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/AS1C07_001T10_9000005678_41585cztM0_level2.fits modeM0/AS1C07_001T10_9000005678_41585cztM0_level2_quad_clean.evt
Size (bytes)371,557,44090,979,200
Size354.3 MB 86.8 MB
Events in quadrant A3,111,521618,725
Events in quadrant B2,647,392637,705
Events in quadrant C3,123,725580,813
Events in quadrant D4,426,321517,830

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126252
B0116662
C0129172
D0170992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5715160.279965%
B571570.122485%
C57151833.202100%
D57154668.153981%

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 7297 5716 3 3 0.04% 0.05%
B 7297 5716 0 0 0.00% 0.00%
C 7297 5716 183 183 2.51% 3.20%
D 7297 5716 371 371 5.08% 6.49%

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 591215 4561.37 628 616 129.5
A 14 235 29794 225.35 628 616 129.5
A 15 223 28265 213.54 628 616 129.5
B 0 245 96378 796.67 624 607 120.2
B 0 155 22884 185.31 624 607 120.2
B 0 190 22063 178.48 624 607 120.2
C 0 10 500501 3602.52 597 599 138.8
C 15 214 248849 1789.0 597 599 138.8
C 15 159 21497 150.6 597 599 138.8
D 13 249 1560483 10779.7 588 571 144.7
D 1 47 161406 1111.44 588 571 144.7
D 2 120 117906 810.84 588 571 144.7

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