ASTROSAT CZTI

Data Quality Report

Orbit 44592

Creation date: 2024-06-27T23:04:17.193667
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_009T03_9000006006_44592cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44592cztM0_level2_quad_clean.evt
Size (bytes)572,166,720105,632,640
Size545.7 MB 100.7 MB
Events in quadrant A7,001,831627,936
Events in quadrant B3,745,282757,673
Events in quadrant C4,310,104725,003
Events in quadrant D5,604,996623,633

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261771
B0154923
C0172511
D0211681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6663126118.925409%
B66633825.733153%
C66633705.553054%
D666378311.751463%

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 7629 6664 728 728 9.54% 10.92%
B 7629 6664 189 189 2.48% 2.84%
C 7629 6664 284 284 3.72% 4.26%
D 7629 6664 689 689 9.03% 10.34%

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 2517238 17172.58 710 696 146.5
A 10 83 1706123 11637.63 710 696 146.5
A 13 248 24929 165.36 710 696 146.5
B 5 172 554535 3535.23 786 761 156.6
B 0 155 35507 221.81 786 761 156.6
B 12 111 20022 122.96 786 761 156.6
C 12 2 1010312 5512.24 771 778 183.1
C 14 254 232156 1263.37 771 778 183.1
C 12 249 32068 170.85 771 778 183.1
D 13 249 2110788 11267.68 739 717 187.3
D 1 52 164563 874.93 739 717 187.3
D 2 249 104021 551.64 739 717 187.3

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