ASTROSAT CZTI

Data Quality Report

Orbit 20231204_A13_080T05_9000005980_level2

Creation date: 2023-12-06T10:09:51.219149
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/AS1A13_080T05_9000005980cztM0_level2.fits modeM0/AS1A13_080T05_9000005980cztM0_level2_quad_clean.evt
Size (bytes)362,574,720526,481,280
Size345.8 MB 502.1 MB
Events in quadrant A2,076,5723,261,903
Events in quadrant B2,079,8423,518,169
Events in quadrant C2,152,0963,346,114
Events in quadrant D1,802,4622,953,155

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08420
B08420
C08420
D08420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01545870
B01069660
C0893240
D01139350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4176437679.019730%
B4176512452.980965%
C417652810.672812%
D4176517774.254759%

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 51832 41726 0 0 0.00% 0.00%
B 51832 41764 0 0 0.00% 0.00%
C 51832 41766 0 0 0.00% 0.00%
D 51832 41750 0 0 0.00% 0.00%

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 7 110 1791 9.24 542 509 138.8
A 0 29 1679 8.43 542 509 138.8
A 7 109 1650 8.22 542 509 138.8
B 2 9 1873 12.21 553 528 110.1
B 3 17 1548 9.26 553 528 110.1
B 2 8 1499 8.82 553 528 110.1
C 3 202 1681 7.81 570 532 147.2
C 3 203 1626 7.43 570 532 147.2
C 1 80 1608 7.31 570 532 147.2
D 10 189 1396 6.38 519 471 145.1
D 6 79 1368 6.18 519 471 145.1
D 4 16 1334 5.95 519 471 145.1

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