ASTROSAT CZTI

Data Quality Report

Orbit 40214

Creation date: 2024-06-27T22:13:40.571648
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_001T01_9000005532_40214cztM0_level2.fits modeM0/AS1C07_001T01_9000005532_40214cztM0_level2_quad_clean.evt
Size (bytes)292,760,64089,256,960
Size279.2 MB 85.1 MB
Events in quadrant A2,668,440594,120
Events in quadrant B2,431,623620,834
Events in quadrant C2,563,553602,594
Events in quadrant D2,794,803544,616

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110783
B0104912
C0105662
D0117592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4854290.597445%
B4854150.309023%
C4854310.638649%
D4854861.771735%

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 6916 4855 17 17 0.25% 0.35%
B 6916 4855 6 6 0.09% 0.12%
C 6916 4855 19 19 0.27% 0.39%
D 6916 4855 61 61 0.88% 1.26%

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 439520 3961.91 547 537 110.8
A 13 248 110354 991.12 547 537 110.8
A 3 137 5624 45.91 547 537 110.8
B 0 229 159078 1518.81 553 539 104.4
B 0 245 56317 534.36 553 539 104.4
B 5 255 20332 189.62 553 539 104.4
C 15 214 209972 1649.67 549 552 126.9
C 12 250 101467 794.94 549 552 126.9
C 0 10 82111 642.47 549 552 126.9
D 12 227 179074 1364.41 538 524 130.9
D 12 218 168621 1284.53 538 524 130.9
D 12 79 164380 1252.12 538 524 130.9

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