ASTROSAT CZTI

Data Quality Report

Orbit 44743

Creation date: 2024-06-27T23:05:58.523557
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/AS1A13_004T11_9000006018_44743cztM0_level2.fits modeM0/AS1A13_004T11_9000006018_44743cztM0_level2_quad_clean.evt
Size (bytes)1,253,949,120238,150,080
Size1.2 GB 227.1 MB
Events in quadrant A12,178,8651,626,128
Events in quadrant B9,151,1651,650,829
Events in quadrant C9,202,2711,556,352
Events in quadrant D14,646,2591,271,795

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03240
B03240
C03240
D03240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0502671
B0383681
C0393971
D0544971

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160106994.366021%
B160117964.971582%
C160119626.008369%
D16011230814.415090%

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 16430 16011 145 145 0.88% 0.91%
B 16431 16012 274 274 1.67% 1.71%
C 16431 16012 461 461 2.81% 2.88%
D 16431 16012 1858 1858 11.31% 11.60%

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 4242056 11526.67 1766 1722 367.9
A 15 223 873593 2370.04 1766 1722 367.9
A 13 248 181293 488.13 1766 1722 367.9
B 0 189 1451278 4180.97 1743 1685 346.7
B 5 255 371537 1066.74 1743 1685 346.7
B 5 172 186668 533.54 1743 1685 346.7
C 14 254 1695497 4247.55 1701 1709 398.8
C 15 208 714435 1787.32 1701 1709 398.8
C 11 16 61207 149.2 1701 1709 398.8
D 1 52 4708421 11327.0 1654 1597 415.5
D 13 249 802712 1927.89 1654 1597 415.5
D 12 233 726420 1744.29 1654 1597 415.5

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