ASTROSAT CZTI

Data Quality Report

Orbit 04652

Creation date: 2024-06-27T14:45:07.945968
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/AS1G05_218T03_9000000582_04652cztM0_level2.evt modeM0/AS1G05_218T03_9000000582_04652cztM0_level2_quad_clean.evt
Size (bytes)456,315,84062,657,280
Size435.2 MB 59.8 MB
Events in quadrant A3,074,303364,932
Events in quadrant B3,349,001366,991
Events in quadrant C3,027,547345,902
Events in quadrant D3,895,863334,771

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141483
B0146102
C0141352
D0166014

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69561251.797010%
B69561191.710753%
C6956921.322599%
D69552002.875629%

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 7271 6958 0 0 0.00% 0.00%
B 7271 6958 2 2 0.03% 0.03%
C 7271 6958 0 0 0.00% 0.00%
D 7271 6958 112 112 1.54% 1.61%

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 3 1 10780 60.45 795 777 165.5
A 0 226 7971 43.47 795 777 165.5
A 12 194 7929 43.22 795 777 165.5
B 8 3 147108 934.33 804 783 156.6
B 15 54 28840 179.15 804 783 156.6
B 14 167 14972 90.6 804 783 156.6
C 8 128 17000 90.28 764 764 179.8
C 8 112 7118 35.33 764 764 179.8
C 8 144 6683 32.91 764 764 179.8
D 13 235 738671 3996.67 758 734 184.6
D 13 239 118476 637.69 758 734 184.6
D 2 14 59008 315.61 758 734 184.6

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