ASTROSAT CZTI

Data Quality Report

Orbit 43135

Creation date: 2024-06-27T22:48:30.141585
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/AS1A09_107T01_9000005854_43135cztM0_level2.fits modeM0/AS1A09_107T01_9000005854_43135cztM0_level2_quad_clean.evt
Size (bytes)413,979,84096,042,240
Size394.8 MB 91.6 MB
Events in quadrant A5,416,107563,630
Events in quadrant B3,198,616668,196
Events in quadrant C2,959,930650,140
Events in quadrant D3,272,422597,763

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200542
B0140262
C0127332
D0142272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A612887714.311358%
B6128641.044386%
C6128300.489556%
D6129811.321586%

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 9053 6130 797 797 8.80% 13.00%
B 9053 6130 19 19 0.21% 0.31%
C 9053 6130 16 16 0.18% 0.26%
D 9054 6131 61 61 0.67% 0.99%

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 15 222 2265491 18360.06 594 581 123.4
A 10 83 532530 4312.14 594 581 123.4
A 12 189 165291 1335.19 594 581 123.4
B 0 186 445571 3543.38 649 630 125.6
B 5 255 104314 825.71 649 630 125.6
B 0 229 82965 655.69 649 630 125.6
C 15 214 255802 1692.55 645 648 150.8
C 14 254 152067 1004.43 645 648 150.8
C 0 207 12299 77.29 645 648 150.8
D 1 52 442929 2783.44 641 620 158.9
D 12 218 207355 1300.98 641 620 158.9
D 13 249 99335 621.21 641 620 158.9

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