ASTROSAT CZTI

Data Quality Report

Orbit 32716

Creation date: 2024-06-27T20:41:10.905785
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/AS1A10_123T04_9000004726_32716cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32716cztM0_level2_quad_clean.evt
Size (bytes)529,773,12063,244,800
Size505.2 MB 60.3 MB
Events in quadrant A6,450,269379,319
Events in quadrant B2,955,114404,874
Events in quadrant C2,370,452401,696
Events in quadrant D3,928,524377,025

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225972
B0118261
C0102561
D0152111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5025123124.497512%
B50251262.507463%
C5025140.278607%
D50251653.283582%

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 7059 5026 1082 1082 15.33% 21.53%
B 7059 5026 93 93 1.32% 1.85%
C 7059 5026 9 9 0.13% 0.18%
D 7059 5026 128 128 1.81% 2.55%

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 15 249 4156600 36347.9 577 566 114.3
A 15 237 18315 155.23 577 566 114.3
A 12 189 14090 118.28 577 566 114.3
B 4 251 408527 3622.21 600 589 112.6
B 5 32 46738 409.77 600 589 112.6
B 0 199 35805 312.69 600 589 112.6
C 0 10 39607 287.59 585 588 135.7
C 3 233 20375 145.84 585 588 135.7
C 0 239 11247 78.56 585 588 135.7
D 8 195 380566 2687.16 582 569 141.4
D 2 250 327125 2309.25 582 569 141.4
D 2 249 322034 2273.25 582 569 141.4

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