ASTROSAT CZTI

Data Quality Report

Orbit 44880

Creation date: 2024-06-27T23:07:34.926729
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/AS1A13_017T02_9000006032_44880cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44880cztM0_level2_quad_clean.evt
Size (bytes)235,716,48056,260,800
Size224.8 MB 53.7 MB
Events in quadrant A2,697,422374,859
Events in quadrant B1,704,358394,680
Events in quadrant C1,654,425380,864
Events in quadrant D2,427,022332,655

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102551
B070741
C068541
D092921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30941765.688429%
B30941063.425986%
C3094822.650291%
D30942347.563025%

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 4329 3095 13 13 0.30% 0.42%
B 4329 3095 2 2 0.05% 0.06%
C 4329 3095 2 2 0.05% 0.06%
D 4329 3095 131 131 3.03% 4.23%

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 1125934 13208.76 399 390 85.2
A 13 248 21309 245.49 399 390 85.2
A 7 3 5730 62.67 399 390 85.2
B 0 155 45685 567.56 400 389 79.8
B 5 255 31725 392.64 400 389 79.8
B 0 190 12785 155.32 400 389 79.8
C 12 250 37444 392.04 399 402 94.5
C 1 3 35126 367.5 399 402 94.5
C 3 233 12599 129.09 399 402 94.5
D 1 52 382847 3907.26 391 379 97.9
D 13 249 280151 2858.13 391 379 97.9
D 2 249 190099 1938.16 391 379 97.9

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