ASTROSAT CZTI

Data Quality Report

Orbit 20240730_A13_037T05_9000006352_level2

Creation date: 2024-08-03T10:09:41.149208
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/AS1A13_037T05_9000006352cztM0_level2.fits modeM0/AS1A13_037T05_9000006352cztM0_level2_quad_clean.evt
Size (bytes)517,193,280517,322,880
Size493.2 MB 493.4 MB
Events in quadrant A3,008,0663,044,519
Events in quadrant B3,001,0563,146,336
Events in quadrant C3,099,5183,034,796
Events in quadrant D2,488,6302,379,145

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02226020
B01238090
C01232960
D01837280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012020
B012020
C012020
D012020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5920021423.618243%
B592006371.076014%
C592012650.447628%
D59201704311.896759%

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 65455 59202 0 0 0.00% 0.00%
B 65455 59189 0 0 0.00% 0.00%
C 65456 59197 0 0 0.00% 0.00%
D 65456 58964 0 0 0.00% 0.00%

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 7 110 2465 8.62 783 731 201.2
A 0 29 2343 8.01 783 731 201.2
A 7 30 2255 7.57 783 731 201.2
B 2 9 2852 13.43 792 752 156.4
B 2 8 2250 9.58 792 752 156.4
B 3 17 2194 9.22 792 752 156.4
C 3 202 2358 7.46 819 758 214.5
C 1 81 2323 7.3 819 758 214.5
C 1 80 2297 7.17 819 758 214.5
D 10 189 1850 6.05 714 648 198.7
D 15 47 1829 5.94 714 648 198.7
D 3 31 1810 5.85 714 648 198.7

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