ASTROSAT CZTI

Data Quality Report

Orbit 39945

Creation date: 2024-06-27T22:10:27.875747
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/AS1C07_001T01_9000005514_39945cztM0_level2.fits modeM0/AS1C07_001T01_9000005514_39945cztM0_level2_quad_clean.evt
Size (bytes)195,255,36054,535,680
Size186.2 MB 52.0 MB
Events in quadrant A1,711,762368,400
Events in quadrant B1,495,000369,304
Events in quadrant C1,996,478348,638
Events in quadrant D1,767,903332,320

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071022
B067531
C081001
D075521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A327480.244349%
B327460.183262%
C3274772.351863%
D3274371.130116%

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 4587 3275 4 4 0.09% 0.12%
B 4587 3275 0 0 0.00% 0.00%
C 4587 3275 69 69 1.50% 2.11%
D 4587 3275 37 37 0.81% 1.13%

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 273011 3605.66 360 351 75.6
A 2 79 24559 320.13 360 351 75.6
A 3 1 8080 102.21 360 351 75.6
B 0 230 35914 504.75 356 345 70.5
B 15 85 19255 268.34 356 345 70.5
B 5 255 14755 204.48 356 345 70.5
C 9 54 398080 4859.92 345 348 81.8
C 15 214 134574 1640.12 345 348 81.8
C 9 187 78237 951.73 345 348 81.8
D 2 250 181758 2101.48 348 338 86.3
D 2 249 96797 1117.33 348 338 86.3
D 12 227 47377 544.88 348 338 86.3

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