ASTROSAT CZTI

Data Quality Report

Orbit 43102

Creation date: 2024-06-27T22:48:03.733987
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_153T01_9000005848_43102cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43102cztM0_level2_quad_clean.evt
Size (bytes)324,541,44093,303,360
Size309.5 MB 89.0 MB
Events in quadrant A3,528,937617,377
Events in quadrant B2,616,570631,895
Events in quadrant C2,726,578611,000
Events in quadrant D2,697,067566,224

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140492
B0118142
C0118002
D0122802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57001342.350877%
B5700170.298246%
C570080.140351%
D5700360.631579%

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 7044 5701 93 93 1.32% 1.63%
B 7044 5701 7 7 0.10% 0.12%
C 7044 5701 5 5 0.07% 0.09%
D 7044 5701 40 40 0.57% 0.70%

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 616486 4927.33 605 592 125.0
A 15 237 465489 3719.31 605 592 125.0
A 12 189 88711 704.98 605 592 125.0
B 5 255 79587 671.95 604 586 117.6
B 0 229 68971 581.65 604 586 117.6
B 0 245 48050 403.71 604 586 117.6
C 15 214 254586 1808.21 598 599 140.5
C 0 207 51136 359.79 598 599 140.5
C 14 254 40746 285.82 598 599 140.5
D 1 52 143481 983.86 596 577 145.2
D 12 233 137321 941.45 596 577 145.2
D 5 32 51297 349.19 596 577 145.2

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