ASTROSAT CZTI

Data Quality Report

Orbit 42208

Creation date: 2024-06-27T22:38:41.007941
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_088T52_9000005778_42208cztM0_level2.fits modeM0/AS1A12_088T52_9000005778_42208cztM0_level2_quad_clean.evt
Size (bytes)406,647,36090,414,720
Size387.8 MB 86.2 MB
Events in quadrant A3,450,539618,233
Events in quadrant B2,764,622630,597
Events in quadrant C2,653,638607,690
Events in quadrant D5,747,027487,807

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136572
B0120082
C0114162
D0210052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5618260.462798%
B5618871.548594%
C5618120.213599%
D561882214.631541%

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 7201 5619 17 17 0.24% 0.30%
B 7201 5619 70 70 0.97% 1.25%
C 7201 5619 8 8 0.11% 0.14%
D 7201 5619 762 762 10.58% 13.56%

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 578886 4450.86 627 612 129.9
A 15 223 321426 2469.24 627 612 129.9
A 15 222 96895 741.07 627 612 129.9
B 7 202 173058 1428.61 618 603 120.7
B 0 229 76628 629.79 618 603 120.7
B 3 112 31090 252.55 618 603 120.7
C 15 214 237618 1648.85 609 613 143.7
C 7 220 42585 292.0 609 613 143.7
C 13 61 4037 23.82 609 613 143.7
D 1 52 1886338 13277.08 577 560 142.0
D 2 249 1114522 7843.0 577 560 142.0
D 5 70 173716 1219.13 577 560 142.0

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