ASTROSAT CZTI

Data Quality Report

Orbit 42709

Creation date: 2024-06-27T22:43:19.052286
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_42709cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42709cztM0_level2_quad_clean.evt
Size (bytes)303,050,88087,635,520
Size289.0 MB 83.6 MB
Events in quadrant A2,917,126589,068
Events in quadrant B2,501,982598,581
Events in quadrant C2,661,889573,841
Events in quadrant D2,731,031527,444

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115942
B0109462
C0110212
D0117012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5206140.268920%
B5206400.768344%
C5206230.441798%
D5205551.056676%

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 7089 5207 2 2 0.03% 0.04%
B 7089 5207 29 29 0.41% 0.56%
C 7089 5207 21 21 0.30% 0.40%
D 7088 5206 50 50 0.71% 0.96%

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 585087 4844.51 582 570 120.7
A 0 230 41321 337.75 582 570 120.7
A 13 248 29158 236.94 582 570 120.7
B 15 32 70532 618.56 572 555 113.1
B 5 255 69289 607.58 572 555 113.1
B 15 85 36119 314.37 572 555 113.1
C 15 214 220795 1667.58 563 566 132.1
C 4 254 173283 1307.82 563 566 132.1
C 3 233 64317 482.72 563 566 132.1
D 2 249 217924 1589.06 564 548 136.8
D 1 52 87790 637.76 564 548 136.8
D 12 6 46302 334.47 564 548 136.8

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