ASTROSAT CZTI

Data Quality Report

Orbit 08191

Creation date: 2024-06-27T15:29:15.616111
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/AS1A03_106T01_9000001130_08191cztM0_level2.evt modeM0/AS1A03_106T01_9000001130_08191cztM0_level2_quad_clean.evt
Size (bytes)404,933,76099,002,880
Size386.2 MB 94.4 MB
Events in quadrant A2,782,049661,000
Events in quadrant B2,949,580661,697
Events in quadrant C2,639,286646,597
Events in quadrant D3,491,916617,659

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121583
B0125761
C0120221
D0143031

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5887841.426873%
B5887881.494819%
C5887661.121114%
D58872484.212672%

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 7104 5888 0 0 0.00% 0.00%
B 7104 5888 11 11 0.15% 0.19%
C 7104 5888 0 0 0.00% 0.00%
D 7104 5888 139 139 1.96% 2.36%

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 13 14 18071 120.92 715 699 143.7
A 8 15 8781 56.25 715 699 143.7
A 0 226 6855 42.85 715 699 143.7
B 0 214 90114 669.45 707 690 133.6
B 10 16 48933 361.16 707 690 133.6
B 4 81 35662 261.81 707 690 133.6
C 13 61 5236 29.28 676 678 155.6
C 3 202 1774 7.04 676 678 155.6
C 7 247 1517 5.39 676 678 155.6
D 12 233 417863 2528.09 678 658 165.0
D 13 105 221427 1337.77 678 658 165.0
D 2 14 98654 593.82 678 658 165.0

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