ASTROSAT CZTI

Data Quality Report

Orbit 03072

Creation date: 2024-06-27T14:24:15.618747
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_238T03_9000000424_03072cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03072cztM0_level2_quad_clean.evt
Size (bytes)345,441,60062,426,880
Size329.4 MB 59.5 MB
Events in quadrant A2,065,716395,099
Events in quadrant B3,008,511387,356
Events in quadrant C2,469,254382,767
Events in quadrant D2,581,105377,805

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099343
B0123892
C0109442
D0112742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494460.121359%
B4944210.424757%
C4944561.132686%
D4944671.355178%

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 7099 4945 0 0 0.00% 0.00%
B 7099 4945 16 16 0.23% 0.32%
C 7099 4945 50 50 0.70% 1.01%
D 7099 4945 54 54 0.76% 1.09%

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 0 50 12948 115.52 522 509 107.7
A 8 15 9987 88.02 522 509 107.7
A 13 14 9364 82.24 522 509 107.7
B 15 204 870234 8507.16 527 517 102.2
B 14 167 26553 254.67 527 517 102.2
B 5 200 24298 232.61 527 517 102.2
C 14 223 302658 2532.03 508 510 119.3
C 5 250 83109 692.19 508 510 119.3
C 6 80 34326 283.38 508 510 119.3
D 3 12 177191 1409.24 508 491 125.4
D 2 152 162434 1291.55 508 491 125.4
D 7 6 152533 1212.58 508 491 125.4

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