ASTROSAT CZTI

Data Quality Report

Orbit 39982

Creation date: 2024-06-27T22:10:53.606170
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_39982cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_39982cztM0_level2_quad_clean.evt
Size (bytes)354,539,52095,676,480
Size338.1 MB 91.2 MB
Events in quadrant A3,168,166655,222
Events in quadrant B2,912,625679,755
Events in quadrant C2,738,905640,760
Events in quadrant D3,890,550549,061

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
A0127623
B0121042
C0113482
D0152662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5313310.583474%
B5313821.543384%
C5313480.903444%
D53134237.961604%

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 7375 5314 28 28 0.38% 0.53%
B 7375 5314 57 57 0.77% 1.07%
C 7375 5314 47 47 0.64% 0.88%
D 7375 5314 419 419 5.68% 7.88%

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 456607 3696.89 609 601 123.3
A 6 10 326288 2640.38 609 601 123.3
A 13 248 21846 172.24 609 601 123.3
B 4 171 402653 3427.79 610 594 117.3
B 5 255 57188 482.5 610 594 117.3
B 0 221 23456 194.91 610 594 117.3
C 15 214 221061 1612.87 594 601 136.7
C 0 10 164394 1198.3 594 601 136.7
C 14 254 20032 142.16 594 601 136.7
D 13 171 1427442 10334.74 572 555 138.1
D 2 250 117561 847.45 572 555 138.1
D 13 249 40083 286.29 572 555 138.1

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