ASTROSAT CZTI

Data Quality Report

Orbit 48129

Creation date: 2024-08-22T08:45:28.252915
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_223T01_9000006402_48129cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48129cztM0_level2_quad_clean.evt
Size (bytes)397,298,88085,976,640
Size378.9 MB 82.0 MB
Events in quadrant A7,074,458723,035
Events in quadrant B1,120,60045,577
Events in quadrant C2,855,534717,242
Events in quadrant D3,138,589656,685

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254012
B069542
C0134523
D0142362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65554146.315789%
B65556555100.000000%
C6554160.244126%
D65541091.663106%

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 7654 6555 133 133 1.74% 2.03%
B 7654 6555 0 0 0.00% 0.00%
C 7653 6553 4 4 0.05% 0.06%
D 7653 6553 60 60 0.78% 0.92%

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 4183024 28277.88 712 697 147.9
A 7 3 73636 493.16 712 697 147.9
A 13 248 57173 381.85 712 697 147.9
B 2 177 905954 79271.7 46 45 11.4
B 4 21 11465 999.31 46 45 11.4
B 0 200 8411 732.07 46 45 11.4
C 14 254 47089 279.57 709 711 165.9
C 12 250 20153 117.2 709 711 165.9
C 11 16 9252 51.49 709 711 165.9
D 12 233 128523 735.23 705 683 173.9
D 2 165 93951 536.4 705 683 173.9
D 13 23 63080 358.86 705 683 173.9

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