ASTROSAT CZTI

Data Quality Report

Orbit 43126

Creation date: 2024-06-27T22:48:21.910105
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/AS1A09_006T07_9000005852_43126cztM0_level2.fits modeM0/AS1A09_006T07_9000005852_43126cztM0_level2_quad_clean.evt
Size (bytes)359,962,56083,928,960
Size343.3 MB 80.0 MB
Events in quadrant A4,664,467514,622
Events in quadrant B2,486,092605,947
Events in quadrant C2,379,470563,262
Events in quadrant D3,413,662514,583

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170672
B0104302
C098772
D0133952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A488769814.282791%
B4888310.634206%
C488820.040917%
D48881653.375614%

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 6950 4888 566 566 8.14% 11.58%
B 6951 4889 19 19 0.27% 0.39%
C 6951 4889 0 0 0.00% 0.00%
D 6951 4889 127 127 1.83% 2.60%

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 15 222 1663297 14970.46 542 532 111.1
A 10 83 530372 4770.34 542 532 111.1
A 15 237 303699 2729.52 542 532 111.1
B 5 255 133866 1209.78 567 552 110.2
B 0 229 96854 873.91 567 552 110.2
B 0 189 18934 166.81 567 552 110.2
C 15 214 207647 1618.43 552 557 128.0
C 0 239 6382 45.52 552 557 128.0
C 12 249 5693 40.14 552 557 128.0
D 1 52 1149027 8259.47 553 539 139.1
D 5 32 55247 393.44 553 539 139.1
D 13 171 29362 207.28 553 539 139.1

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