ASTROSAT CZTI

Data Quality Report

Orbit 42113

Creation date: 2024-06-27T22:37:03.343836
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/AS1A12_044T22_9000005750_42113cztM0_level2.fits modeM0/AS1A12_044T22_9000005750_42113cztM0_level2_quad_clean.evt
Size (bytes)404,501,76090,037,440
Size385.8 MB 85.9 MB
Events in quadrant A5,257,597574,369
Events in quadrant B2,383,699645,830
Events in quadrant C2,810,282612,845
Events in quadrant D4,111,857524,511

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193045
B0106062
C0114392
D0159272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52704949.373814%
B527170.132802%
C5271510.967558%
D52714889.258205%

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 9486 5272 371 371 3.91% 7.04%
B 9487 5273 0 0 0.00% 0.00%
C 9487 5273 43 43 0.45% 0.82%
D 9487 5273 412 412 4.34% 7.81%

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 2470464 20440.05 587 573 120.8
A 10 83 507249 4193.09 587 573 120.8
A 13 248 7759 59.47 587 573 120.8
B 3 112 17253 142.7 600 583 116.8
B 12 111 14704 120.88 600 583 116.8
B 11 111 13694 112.24 600 583 116.8
C 15 214 220364 1571.77 596 601 139.8
C 8 79 163922 1168.09 596 601 139.8
C 10 223 102468 728.56 596 601 139.8
D 13 249 1070126 7642.01 571 557 140.0
D 12 6 455146 3248.01 571 557 140.0
D 1 52 213141 1518.9 571 557 140.0

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