ASTROSAT CZTI

Data Quality Report

Orbit 43064

Creation date: 2024-06-27T22:47:33.123215
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/AS1C07_001T10_9000005844_43064cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43064cztM0_level2_quad_clean.evt
Size (bytes)375,445,44087,713,280
Size358.1 MB 83.6 MB
Events in quadrant A3,281,082591,540
Events in quadrant B2,375,936607,687
Events in quadrant C2,644,957571,787
Events in quadrant D5,177,699508,355

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130522
B0109172
C0114012
D0191402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5376661.227679%
B5376120.223214%
C5376240.446429%
D53753636.753488%

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 7078 5377 43 43 0.61% 0.80%
B 7078 5377 6 6 0.08% 0.11%
C 7078 5377 26 26 0.37% 0.48%
D 7077 5376 324 324 4.58% 6.03%

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 594289 4930.67 585 573 120.4
A 15 222 229124 1898.06 585 573 120.4
A 15 237 143165 1184.19 585 573 120.4
B 15 85 29656 256.41 582 566 113.4
B 4 171 24577 211.64 582 566 113.4
B 12 111 14198 120.16 582 566 113.4
C 15 214 237399 1793.75 565 568 132.0
C 0 239 172062 1298.89 565 568 132.0
C 14 254 20130 148.16 565 568 132.0
D 2 16 1904037 14339.69 552 537 132.7
D 13 249 630241 4743.77 552 537 132.7
D 1 52 274253 2061.99 552 537 132.7

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