ASTROSAT CZTI

Data Quality Report

Orbit 40011

Creation date: 2024-06-27T22:11:15.359422
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_054T03_9000005516_40011cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40011cztM0_level2_quad_clean.evt
Size (bytes)327,867,84097,372,800
Size312.7 MB 92.9 MB
Events in quadrant A2,939,859658,636
Events in quadrant B2,833,984688,341
Events in quadrant C2,619,677652,258
Events in quadrant D3,327,751576,032

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119753
B0119112
C0109682
D0137912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5331360.675295%
B5331881.650722%
C5331160.300131%
D53311823.413994%

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 7394 5332 22 22 0.30% 0.41%
B 7394 5332 62 62 0.84% 1.16%
C 7394 5332 12 12 0.16% 0.23%
D 7394 5332 141 141 1.91% 2.64%

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 444265 3608.66 606 597 122.9
A 13 248 128204 1037.92 606 597 122.9
A 2 79 16779 131.62 606 597 122.9
B 4 171 424289 3657.67 610 595 115.8
B 12 111 13926 115.08 610 595 115.8
B 11 111 12779 105.18 610 595 115.8
C 15 214 222560 1613.16 595 603 137.6
C 0 10 35117 250.84 595 603 137.6
C 10 20 25206 178.81 595 603 137.6
D 12 227 576013 4070.99 580 564 141.4
D 2 250 355402 2510.28 580 564 141.4
D 13 249 98888 695.59 580 564 141.4

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