ASTROSAT CZTI

Data Quality Report

Orbit 42710

Creation date: 2024-06-27T22:43:19.856538
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/AS1A05_013T01_9000005822_42710cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42710cztM0_level2_quad_clean.evt
Size (bytes)350,608,32096,209,280
Size334.4 MB 91.8 MB
Events in quadrant A3,159,009645,365
Events in quadrant B2,721,593653,486
Events in quadrant C2,961,976632,088
Events in quadrant D3,683,773576,479

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126922
B0120832
C0124352
D0149372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5806160.275577%
B5806340.585601%
C5806240.413365%
D58061382.376852%

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 7328 5807 6 6 0.08% 0.10%
B 7328 5807 24 24 0.33% 0.41%
C 7328 5807 16 16 0.22% 0.28%
D 7328 5807 139 139 1.90% 2.39%

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 615156 4670.37 643 629 131.6
A 13 248 39809 297.77 643 629 131.6
A 2 79 9119 64.52 643 629 131.6
B 15 32 66000 526.08 633 614 124.3
B 15 85 45173 358.51 633 614 124.3
B 5 172 35951 284.31 633 614 124.3
C 15 214 244551 1677.77 621 625 145.4
C 4 254 222047 1522.98 621 625 145.4
C 3 233 57048 388.09 621 625 145.4
D 1 52 797558 5236.84 621 604 152.2
D 2 249 199572 1307.43 621 604 152.2
D 5 171 53103 344.97 621 604 152.2

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