ASTROSAT CZTI

Data Quality Report

Orbit 09413

Creation date: 2024-06-27T15:46:10.291562
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/AS1G07_063T01_9000001336_09413cztM0_level2.evt modeM0/AS1G07_063T01_9000001336_09413cztM0_level2_quad_clean.evt
Size (bytes)460,892,16080,415,360
Size439.5 MB 76.7 MB
Events in quadrant A3,649,937494,420
Events in quadrant B2,819,130514,871
Events in quadrant C4,202,442504,399
Events in quadrant D2,863,361486,999

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014216
B014218
C014216
D014214

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173472365
B0144461598
C0194232564
D0151551822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61571011.640409%
B62701041.658692%
C61753746.056680%
D6254971.551007%

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 7294 6620 5 5 0.07% 0.08%
B 7295 6698 1 1 0.01% 0.01%
C 7294 6664 299 299 4.10% 4.49%
D 7295 6705 23 23 0.32% 0.34%

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 8 5 889499 6095.98 705 690 145.8
A 4 2 21402 142.06 705 690 145.8
A 1 162 20425 135.35 705 690 145.8
B 12 111 16249 110.03 725 707 141.3
B 11 111 12972 86.83 725 707 141.3
B 14 111 9773 64.18 725 707 141.3
C 4 254 1080585 6834.53 676 678 158.0
C 9 68 480217 3034.91 676 678 158.0
C 13 61 5045 27.64 676 678 158.0
D 1 52 120007 681.25 690 671 175.2
D 2 14 31617 176.66 690 671 175.2
D 2 234 25131 139.63 690 671 175.2

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