ASTROSAT CZTI

Data Quality Report

Orbit 38814

Creation date: 2024-06-27T21:56:48.308764
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_061T07_9000005402_38814cztM0_level2.fits modeM0/AS1A12_061T07_9000005402_38814cztM0_level2_quad_clean.evt
Size (bytes)339,793,92094,530,240
Size324.1 MB 90.2 MB
Events in quadrant A2,883,440630,495
Events in quadrant B2,571,819650,636
Events in quadrant C2,780,372617,474
Events in quadrant D3,897,930564,766

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120773
B0115372
C0117862
D0154902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5706130.227830%
B570660.105152%
C5706330.578339%
D57061252.190676%

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 8721 5708 7 7 0.08% 0.12%
B 8721 5708 0 0 0.00% 0.00%
C 8721 5708 29 29 0.33% 0.51%
D 8721 5708 108 108 1.24% 1.89%

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 400544 3119.81 629 615 128.2
A 9 143 23240 176.5 629 615 128.2
A 13 248 17627 132.71 629 615 128.2
B 5 200 34607 277.7 628 608 122.4
B 0 230 23552 187.4 628 608 122.4
B 4 170 20571 163.05 628 608 122.4
C 15 214 255103 1759.46 616 618 144.6
C 10 20 69423 475.7 616 618 144.6
C 1 23 42774 291.46 616 618 144.6
D 2 16 601450 3998.91 609 589 150.3
D 12 227 507916 3376.41 609 589 150.3
D 2 250 163255 1082.59 609 589 150.3

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