ASTROSAT CZTI

Data Quality Report

Orbit 43888

Creation date: 2024-06-27T22:56:53.436614
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/AS1C07_001T10_9000005910_43888cztM0_level2.fits modeM0/AS1C07_001T10_9000005910_43888cztM0_level2_quad_clean.evt
Size (bytes)1,415,289,600297,581,760
Size1.3 GB 283.8 MB
Events in quadrant A15,095,8911,990,773
Events in quadrant B10,038,4482,053,652
Events in quadrant C11,587,7471,951,947
Events in quadrant D14,176,7281,684,572

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0585783
B0434233
C0478763
D0557973

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03900
B03900
C03900
D03900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A192857533.904589%
B192855192.691211%
C192856123.173451%
D1928515027.788437%

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 20375 19289 429 429 2.11% 2.22%
B 20375 19289 284 284 1.39% 1.47%
C 20375 19289 481 481 2.36% 2.49%
D 20375 19289 1148 1148 5.63% 5.95%

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 2785508 6498.78 2085 2039 428.3
A 15 222 2242986 5232.11 2085 2039 428.3
A 15 223 1610428 3755.23 2085 2039 428.3
B 7 205 1114662 2718.73 2097 2034 409.2
B 0 213 108346 259.78 2097 2034 409.2
B 4 170 89648 214.09 2097 2034 409.2
C 15 158 2398573 5007.36 2051 2059 478.6
C 3 233 777143 1619.49 2051 2059 478.6
C 14 254 226408 468.76 2051 2059 478.6
D 13 171 1304675 2575.42 2005 1944 505.8
D 7 80 1183887 2336.63 2005 1944 505.8
D 13 187 797497 1572.76 2005 1944 505.8

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