ASTROSAT CZTI

Data Quality Report

Orbit 43208

Creation date: 2024-06-27T22:49:19.025389
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/AS1A09_036T17_9000005858_43208cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43208cztM0_level2_quad_clean.evt
Size (bytes)343,270,08091,111,680
Size327.4 MB 86.9 MB
Events in quadrant A3,850,399598,621
Events in quadrant B2,540,971631,305
Events in quadrant C2,659,972595,021
Events in quadrant D3,223,243545,879

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151003
B0113282
C0114002
D0134822

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55492544.577401%
B5549140.252298%
C554960.108128%
D55491081.946297%

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 7132 5550 191 191 2.68% 3.44%
B 7132 5550 3 3 0.04% 0.05%
C 7132 5550 2 2 0.03% 0.04%
D 7132 5550 92 92 1.29% 1.66%

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 15 237 594513 4724.76 604 591 125.7
A 10 83 583522 4637.33 604 591 125.7
A 13 248 178681 1416.74 604 591 125.7
B 0 189 40077 326.43 614 597 120.9
B 0 229 39692 323.25 614 597 120.9
B 0 186 20558 165.04 614 597 120.9
C 15 214 230992 1609.49 601 606 143.1
C 14 254 65222 451.41 601 606 143.1
C 4 254 17957 121.22 601 606 143.1
D 1 52 660556 4468.76 596 580 147.7
D 12 6 93763 630.95 596 580 147.7
D 12 16 70547 473.75 596 580 147.7

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