ASTROSAT CZTI

Data Quality Report

Orbit 43115

Creation date: 2024-06-27T22:48:13.627854
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/AS1T05_154T01_9000005850_43115cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43115cztM0_level2_quad_clean.evt
Size (bytes)320,276,16086,840,640
Size305.4 MB 82.8 MB
Events in quadrant A3,452,998577,994
Events in quadrant B2,308,160596,739
Events in quadrant C2,548,849569,213
Events in quadrant D3,130,147512,646

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137252
B0107982
C0110722
D0133204

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53282043.828829%
B532890.168919%
C5328120.225225%
D53272494.674301%

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 7120 5329 134 134 1.88% 2.51%
B 7120 5329 3 3 0.04% 0.06%
C 7120 5329 11 11 0.15% 0.21%
D 7119 5328 210 210 2.95% 3.94%

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 15 237 632847 5568.29 551 539 113.6
A 10 83 594114 5227.2 551 539 113.6
A 15 222 66210 578.31 551 539 113.6
B 0 229 53034 482.73 558 542 108.7
B 3 112 21338 191.25 558 542 108.7
B 0 230 15539 137.92 558 542 108.7
C 15 214 239973 1872.37 550 552 127.9
C 14 254 117893 917.65 550 552 127.9
C 3 233 29645 227.52 550 552 127.9
D 1 52 709008 5347.79 541 527 132.5
D 10 118 218544 1645.65 541 527 132.5
D 5 32 43555 324.79 541 527 132.5

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