ASTROSAT CZTI

Data Quality Report

Orbit 48333

Creation date: 2024-09-04T21:23:46.832061
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_029T01_9000006422_48333cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48333cztM0_level2_quad_clean.evt
Size (bytes)531,895,680110,678,400
Size507.3 MB 105.6 MB
Events in quadrant A7,631,143726,937
Events in quadrant B3,861,508759,521
Events in quadrant C3,388,706738,834
Events in quadrant D4,275,609648,121

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276151
B0159601
C0147461
D0174851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68624466.499563%
B68632643.846714%
C6863971.413376%
D68634015.842926%

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 7712 6862 89 89 1.15% 1.30%
B 7713 6863 62 62 0.80% 0.90%
C 7713 6864 13 13 0.17% 0.19%
D 7713 6864 271 271 3.51% 3.95%

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 4268192 25734.83 792 777 165.8
A 13 248 243264 1462.33 792 777 165.8
A 14 248 25082 146.57 792 777 165.8
B 4 21 309006 1951.45 795 772 158.0
B 5 255 285720 1804.02 795 772 158.0
B 0 198 39460 244.94 795 772 158.0
C 15 208 159403 849.36 789 795 186.7
C 0 207 78853 418.01 789 795 186.7
C 12 2 48738 256.74 789 795 186.7
D 2 165 573322 2875.83 783 758 199.1
D 13 29 304021 1523.21 783 758 199.1
D 7 96 94105 468.86 783 758 199.1

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