ASTROSAT CZTI

Data Quality Report

Orbit 44778

Creation date: 2024-06-27T23:06:24.909485
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_004T12_9000006020_44778cztM0_level2.fits modeM0/AS1A13_004T12_9000006020_44778cztM0_level2_quad_clean.evt
Size (bytes)570,605,76091,972,800
Size544.2 MB 87.7 MB
Events in quadrant A6,679,146622,843
Events in quadrant B4,055,274654,034
Events in quadrant C2,774,685675,007
Events in quadrant D7,166,488430,866

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239001
B0159321
C0122231
D0252791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A575363110.968191%
B57544547.890163%
C5754540.938478%
D5754182231.664929%

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 6948 5754 459 459 6.61% 7.98%
B 6949 5754 338 338 4.86% 5.87%
C 6949 5755 9 9 0.13% 0.16%
D 6949 5754 1569 1569 22.58% 27.27%

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 15 223 1853848 14071.51 642 628 131.7
A 10 83 1825062 13852.93 642 628 131.7
A 13 248 413147 3132.26 642 628 131.7
B 4 171 645627 5113.88 645 624 126.1
B 0 189 374807 2966.69 645 624 126.1
B 5 255 206677 1633.68 645 624 126.1
C 2 16 71476 456.36 666 670 155.2
C 3 233 47068 299.05 666 670 155.2
C 2 14 21095 131.64 666 670 155.2
D 13 174 1908051 13798.33 551 535 138.2
D 1 52 1361727 9846.4 551 535 138.2
D 2 249 514362 3716.85 551 535 138.2

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