ASTROSAT CZTI

Data Quality Report

Orbit 41643

Creation date: 2024-06-27T22:31:04.702331
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_116T01_9000005682_41643cztM0_level2.fits modeM0/AS1T05_116T01_9000005682_41643cztM0_level2_quad_clean.evt
Size (bytes)359,225,28092,260,800
Size342.6 MB 88.0 MB
Events in quadrant A3,038,823621,115
Events in quadrant B2,590,179640,644
Events in quadrant C3,189,730587,607
Events in quadrant D4,033,439544,541

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123592
B0115932
C0129812
D0159974

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5719160.279769%
B5719100.174856%
C57191963.427173%
D57182153.760056%

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 7302 5720 3 3 0.04% 0.05%
B 7302 5720 1 1 0.01% 0.02%
C 7302 5720 188 188 2.57% 3.29%
D 7301 5719 188 188 2.57% 3.29%

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 549526 4172.35 635 620 131.6
A 13 248 15346 111.94 635 620 131.6
A 2 79 9291 65.91 635 620 131.6
B 0 190 42374 344.77 627 607 121.1
B 0 189 17557 139.91 627 607 121.1
B 4 81 16525 131.4 627 607 121.1
C 0 10 551932 3886.98 605 610 141.8
C 15 214 232090 1632.0 605 610 141.8
C 14 254 42322 294.08 605 610 141.8
D 13 249 705649 4763.5 608 590 148.0
D 1 47 366254 2470.49 608 590 148.0
D 2 249 236188 1591.74 608 590 148.0

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