ASTROSAT CZTI

Data Quality Report

Orbit 13348

Creation date: 2024-06-27T16:39:30.206982
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/AS1G08_082T01_9000001986_13348cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13348cztM0_level2_quad_clean.evt
Size (bytes)472,602,24099,745,920
Size450.7 MB 95.1 MB
Events in quadrant A3,406,152631,691
Events in quadrant B3,571,845650,057
Events in quadrant C3,464,534627,874
Events in quadrant D3,369,382598,177

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152343
B0155312
C0151942
D0153802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7367330.447944%
B7367720.977331%
C7367130.176463%
D7367190.257907%

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 9228 7369 0 0 0.00% 0.00%
B 9228 7369 12 12 0.13% 0.16%
C 9228 7369 0 0 0.00% 0.00%
D 9228 7369 6 6 0.07% 0.08%

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 14818 77.99 878 859 179.0
A 0 226 7788 38.71 878 859 179.0
A 12 194 6520 31.63 878 859 179.0
B 3 64 60662 355.31 886 863 168.3
B 12 111 19700 111.92 886 863 168.3
B 0 245 17289 97.6 886 863 168.3
C 3 233 113837 567.22 858 861 199.2
C 13 61 6267 27.14 858 861 199.2
C 14 234 5083 21.2 858 861 199.2
D 8 195 81275 395.14 844 822 203.6
D 2 136 46040 222.08 844 822 203.6
D 2 234 23961 113.65 844 822 203.6

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