ASTROSAT CZTI

Data Quality Report

Orbit 06335

Creation date: 2024-06-27T15:05:48.919172
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/AS1G06_151T01_9000000836_06335cztM0_level2.evt modeM0/AS1G06_151T01_9000000836_06335cztM0_level2_quad_clean.evt
Size (bytes)673,441,92060,770,880
Size642.2 MB 58.0 MB
Events in quadrant A3,230,606374,127
Events in quadrant B4,610,716366,715
Events in quadrant C2,917,233372,120
Events in quadrant D9,200,010276,131

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138282
B0179701
C0130831
D0317801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6448310.480769%
B64485338.266129%
C644880.124069%
D6448211432.785360%

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 7518 6449 2 2 0.03% 0.03%
B 7518 6449 395 395 5.25% 6.12%
C 7518 6449 0 0 0.00% 0.00%
D 7518 6449 1890 1890 25.14% 29.31%

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 14 111 215406 1387.6 756 742 154.7
A 8 15 70531 451.12 756 742 154.7
A 13 251 17074 105.57 756 742 154.7
B 3 64 1642534 11554.66 740 723 142.1
B 11 51 52045 361.19 740 723 142.1
B 4 81 28451 195.14 740 723 142.1
C 9 16 20997 118.28 735 739 171.3
C 9 54 18144 101.62 735 739 171.3
C 4 254 8733 46.67 735 739 171.3
D 4 95 3193601 20462.09 625 607 156.0
D 12 220 2233791 14311.21 625 607 156.0
D 12 221 845355 5413.51 625 607 156.0

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