ASTROSAT CZTI

Data Quality Report

Orbit 45861

Creation date: 2024-06-27T23:17:01.816609
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/AS1T05_187T01_9000006132_45861cztM0_level2.fits modeM0/AS1T05_187T01_9000006132_45861cztM0_level2_quad_clean.evt
Size (bytes)640,045,44099,161,280
Size610.4 MB 94.6 MB
Events in quadrant A5,688,461712,194
Events in quadrant B10,480,568481,894
Events in quadrant C2,845,426709,502
Events in quadrant D4,165,297637,996

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215711
B0356841
C0133282
D0170491

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66141171.768975%
B6614264339.960689%
C661370.105852%
D66141191.799214%

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 7560 6615 28 28 0.37% 0.42%
B 7560 6614 1821 1821 24.09% 27.53%
C 7559 6614 0 0 0.00% 0.00%
D 7560 6615 99 99 1.31% 1.50%

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 2813755 18548.33 729 714 151.7
A 14 235 14344 89.87 729 714 151.7
A 0 243 11441 70.73 729 714 151.7
B 3 112 7364855 59961.4 626 608 122.8
B 0 189 213421 1732.77 626 608 122.8
B 0 171 122513 992.58 626 608 122.8
C 3 233 8183 43.68 724 729 170.7
C 12 2 5732 29.32 724 729 170.7
C 2 14 5729 29.3 724 729 170.7
D 7 38 341511 1892.66 712 689 180.1
D 1 52 269480 1492.66 712 689 180.1
D 13 249 231895 1283.94 712 689 180.1

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