ASTROSAT CZTI

Data Quality Report

Orbit 53063

Creation date: 2025-07-20T11:39:30.952368
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/AS1C09_011T07_9000006488_53063cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53063cztM0_level2_quad_clean.evt
Size (bytes)615,110,40088,695,360
Size586.6 MB 84.6 MB
Events in quadrant A5,858,271570,435
Events in quadrant B3,898,248646,808
Events in quadrant C7,688,852495,440
Events in quadrant D4,837,041533,832

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217531
B0161911
C0272201
D0188121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A628665310.388164%
B62872223.531096%
C6287127520.279943%
D62873575.678384%

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 7466 6287 506 506 6.78% 8.05%
B 7467 6288 177 177 2.37% 2.81%
C 7467 6287 1150 1150 15.40% 18.29%
D 7467 6288 283 283 3.79% 4.50%

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 7 206 1565787 9944.27 627 613 157.4
A 9 191 1033191 6560.45 627 613 157.4
A 15 190 326243 2068.88 627 613 157.4
B 4 81 852740 6192.18 641 620 137.6
B 1 255 223955 1622.93 641 620 137.6
B 10 247 169221 1225.19 641 620 137.6
C 15 224 3059256 19046.61 579 574 160.6
C 1 241 673205 4188.52 579 574 160.6
C 0 240 482454 3000.7 579 574 160.6
D 12 17 805157 4633.44 609 583 173.6
D 15 78 376186 2163.05 609 583 173.6
D 2 249 234251 1345.67 609 583 173.6

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