ASTROSAT CZTI

Data Quality Report

Orbit 12314

Creation date: 2024-06-27T16:25:19.491999
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/AS1A04_183T02_9000001816_12314cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12314cztM0_level2_quad_clean.evt
Size (bytes)477,092,16082,071,360
Size455.0 MB 78.3 MB
Events in quadrant A3,544,108505,166
Events in quadrant B3,700,766514,824
Events in quadrant C3,113,462511,095
Events in quadrant D3,632,493484,043

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149063
B0152492
C0137262
D0154272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6746500.741180%
B6746891.319300%
C674690.133412%
D6746490.726356%

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 7827 6748 2 2 0.03% 0.03%
B 7827 6748 56 56 0.72% 0.83%
C 7827 6748 0 0 0.00% 0.00%
D 7827 6748 28 28 0.36% 0.41%

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 1 162 164255 992.37 800 783 164.7
A 1 178 92466 556.57 800 783 164.7
A 1 161 79301 476.65 800 783 164.7
B 4 239 398022 2571.98 807 789 154.4
B 3 64 40861 259.46 807 789 154.4
B 0 197 27459 172.68 807 789 154.4
C 4 254 13165 67.27 788 794 183.9
C 8 128 10234 51.33 788 794 183.9
C 15 208 8511 41.96 788 794 183.9
D 1 52 344558 1833.51 777 756 187.5
D 10 50 105696 559.65 777 756 187.5
D 13 249 62622 329.93 777 756 187.5

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