ASTROSAT CZTI

Data Quality Report

Orbit 40044

Creation date: 2024-06-27T22:11:38.489598
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_40044cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40044cztM0_level2_quad_clean.evt
Size (bytes)360,783,36088,632,000
Size344.1 MB 84.5 MB
Events in quadrant A3,566,644585,727
Events in quadrant B2,549,044613,635
Events in quadrant C3,080,473588,032
Events in quadrant D3,731,903512,984

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138693
B0114482
C0126242
D0148712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54821542.809194%
B5482440.802627%
C5482470.857351%
D54823386.165633%

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 7125 5483 124 124 1.74% 2.26%
B 7125 5483 28 28 0.39% 0.51%
C 7125 5483 36 36 0.51% 0.66%
D 7125 5483 280 280 3.93% 5.11%

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 13 248 741641 6088.19 591 579 121.7
A 10 83 474214 3891.15 591 579 121.7
A 2 79 27752 223.24 591 579 121.7
B 5 32 151097 1290.33 594 578 116.7
B 0 221 23154 193.53 594 578 116.7
B 0 230 17219 142.66 594 578 116.7
C 9 187 371769 2704.04 582 586 137.3
C 15 214 229561 1668.06 582 586 137.3
C 14 254 178649 1297.17 582 586 137.3
D 12 227 637401 4524.75 568 551 140.7
D 2 250 461080 3272.01 568 551 140.7
D 1 47 192294 1362.31 568 551 140.7

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