ASTROSAT CZTI

Data Quality Report

Orbit 48433

Creation date: 2024-09-11T15:34:00.541910
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_9000006426_48433cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48433cztM0_level2_quad_clean.evt
Size (bytes)1,125,256,320253,154,880
Size1.0 GB 241.4 MB
Events in quadrant A16,628,5991,653,432
Events in quadrant B7,435,4121,759,216
Events in quadrant C7,993,2331,680,229
Events in quadrant D8,411,7931,514,966

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0613967
B0325083
C0346633
D0356443

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03120
B03120
C03120
D03120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A153298145.310196%
B153301971.285062%
C153301611.050228%
D153313422.230774%

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 18770 15333 340 340 1.81% 2.22%
B 18770 15333 34 34 0.18% 0.22%
C 18770 15333 50 50 0.27% 0.33%
D 18771 15334 208 208 1.11% 1.36%

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 9026958 24937.06 1731 1694 361.9
A 13 248 901276 2485.57 1731 1694 361.9
A 13 254 29889 77.9 1731 1694 361.9
B 12 16 308889 894.25 1739 1685 343.5
B 0 197 62066 175.76 1739 1685 343.5
B 5 255 55077 155.42 1739 1685 343.5
C 15 208 865494 2149.16 1718 1729 401.9
C 12 2 400108 991.22 1718 1729 401.9
C 14 67 13231 28.62 1718 1729 401.9
D 2 165 368094 849.46 1723 1675 431.4
D 12 233 314494 725.2 1723 1675 431.4
D 10 199 207159 476.37 1723 1675 431.4

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