ASTROSAT CZTI

Data Quality Report

Orbit 41098

Creation date: 2024-06-27T22:24:24.926516
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/AS1A12_032T01_9000005598_41098cztM0_level2.fits modeM0/AS1A12_032T01_9000005598_41098cztM0_level2_quad_clean.evt
Size (bytes)324,610,56097,122,240
Size309.6 MB 92.6 MB
Events in quadrant A3,085,967672,133
Events in quadrant B2,782,814675,009
Events in quadrant C2,805,654638,017
Events in quadrant D2,937,584592,495

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122613
B0112742
C0110702
D0119232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5187170.327742%
B5187991.908618%
C5187420.809717%
D5187821.580875%

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 7279 5188 4 4 0.05% 0.08%
B 7279 5188 42 42 0.58% 0.81%
C 7279 5188 38 38 0.52% 0.73%
D 7279 5188 54 54 0.74% 1.04%

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 518331 3884.75 649 639 133.3
A 2 79 51082 378.52 649 639 133.3
A 13 254 9556 66.91 649 639 133.3
B 0 186 253245 2059.1 635 621 122.7
B 5 255 31151 248.84 635 621 122.7
B 12 111 14993 117.14 635 621 122.7
C 15 214 220545 1528.36 619 624 143.9
C 0 10 141788 981.03 619 624 143.9
C 14 254 25978 176.2 619 624 143.9
D 2 249 237749 1559.86 626 607 152.0
D 13 249 118512 775.55 626 607 152.0
D 9 19 64287 418.87 626 607 152.0

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