ASTROSAT CZTI

Data Quality Report

Orbit 44019

Creation date: 2024-06-27T22:58:20.703277
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_037T01_9000005930_44019cztM0_level2.fits modeM0/AS1A13_037T01_9000005930_44019cztM0_level2_quad_clean.evt
Size (bytes)570,237,120117,316,800
Size543.8 MB 111.9 MB
Events in quadrant A5,301,994778,323
Events in quadrant B3,880,184817,518
Events in quadrant C5,030,439777,701
Events in quadrant D6,310,585653,043

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215681
B0164911
C0200561
D0238271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75442663.525981%
B75451612.133863%
C75451942.571239%
D754578610.417495%

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 7914 7545 95 95 1.20% 1.26%
B 7915 7546 42 42 0.53% 0.56%
C 7915 7546 69 69 0.87% 0.91%
D 7915 7545 604 604 7.63% 8.01%

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 1289856 7277.73 840 821 177.1
A 14 238 502183 2830.63 840 821 177.1
A 15 222 191155 1074.6 840 821 177.1
B 3 112 137537 811.83 841 813 168.4
B 2 2 129531 764.29 841 813 168.4
B 15 36 111097 654.84 841 813 168.4
C 3 233 1466070 7474.31 821 825 196.0
C 15 158 249439 1268.2 821 825 196.0
C 15 157 43718 218.8 821 825 196.0
D 5 222 658647 3214.32 802 775 204.7
D 7 80 583911 2849.16 802 775 204.7
D 13 138 580341 2831.72 802 775 204.7

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