ASTROSAT CZTI

Data Quality Report

Orbit 40299

Creation date: 2024-06-27T22:14:41.430736
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_056T02_9000005538_40299cztM0_level2.fits modeM0/AS1A12_056T02_9000005538_40299cztM0_level2_quad_clean.evt
Size (bytes)381,432,96097,968,960
Size363.8 MB 93.4 MB
Events in quadrant A4,173,312635,004
Events in quadrant B2,746,354696,667
Events in quadrant C2,706,328663,247
Events in quadrant D4,070,094590,606

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157063
B0114962
C0112372
D0157122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54394287.869094%
B5439220.404486%
C5439100.183857%
D54392825.184777%

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 7292 5440 303 303 4.16% 5.57%
B 7292 5440 9 9 0.12% 0.17%
C 7292 5440 5 5 0.07% 0.09%
D 7292 5440 283 283 3.88% 5.20%

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 13 248 1122020 8801.84 626 614 127.4
A 10 83 477749 3745.0 626 614 127.4
A 12 189 58697 455.89 626 614 127.4
B 4 170 64414 526.07 638 622 121.3
B 5 255 46454 377.96 638 622 121.3
B 0 245 44233 359.64 638 622 121.3
C 15 214 231639 1600.82 622 629 144.3
C 0 10 29420 199.51 622 629 144.3
C 14 254 9804 63.58 622 629 144.3
D 1 47 996265 6617.66 612 596 150.5
D 12 227 336364 2231.67 612 596 150.5
D 12 233 204134 1352.81 612 596 150.5

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