ASTROSAT CZTI

Data Quality Report

Orbit 40624

Creation date: 2024-06-27T22:18:22.326644
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/AS1A12_011T59_9000005552_40624cztM0_level2.fits modeM0/AS1A12_011T59_9000005552_40624cztM0_level2_quad_clean.evt
Size (bytes)356,411,52088,971,840
Size339.9 MB 84.9 MB
Events in quadrant A3,081,533622,467
Events in quadrant B3,326,015635,398
Events in quadrant C2,674,577601,860
Events in quadrant D3,662,540432,740

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126863
B0135912
C0116472
D0147462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5742330.574713%
B5742550.957854%
C5742110.191571%
D5742146325.478927%

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 7205 5743 29 29 0.40% 0.50%
B 7205 5743 30 30 0.42% 0.52%
C 7205 5743 8 8 0.11% 0.14%
D 7204 5742 240 240 3.33% 4.18%

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 521521 4039.79 623 611 128.9
A 12 189 115099 887.88 623 611 128.9
A 2 79 27213 206.31 623 611 128.9
B 0 190 448243 3704.08 618 600 120.9
B 0 229 189548 1563.47 618 600 120.9
B 3 112 109118 897.95 618 600 120.9
C 15 214 247552 1753.4 606 610 140.8
C 0 10 37039 258.66 606 610 140.8
C 14 254 13126 88.87 606 610 140.8
D 12 227 938160 7415.74 511 496 126.4
D 12 191 310146 2448.94 511 496 126.4
D 2 250 147049 1159.05 511 496 126.4

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