ASTROSAT CZTI

Data Quality Report

Orbit 25534

Creation date: 2024-06-27T19:18:44.484025
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/AS1A07_147T01_9000003722_25534cztM0_level2.evt modeM0/AS1A07_147T01_9000003722_25534cztM0_level2_quad_clean.evt
Size (bytes)480,337,92070,009,920
Size458.1 MB 66.8 MB
Events in quadrant A3,482,867435,413
Events in quadrant B3,519,356441,676
Events in quadrant C3,457,522404,976
Events in quadrant D3,660,691398,752

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139230
B0141030
C0138720
D0146630

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6295440.698967%
B6295781.239079%
C6295911.445592%
D6296300.476493%

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 7640 6296 0 0 0.00% 0.00%
B 7640 6296 0 0 0.00% 0.00%
C 7640 6296 1 1 0.01% 0.02%
D 7641 6297 7 7 0.09% 0.11%

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 13 254 9558 48.63 901 888 178.3
A 0 226 7676 38.08 901 888 178.3
A 3 137 7537 37.3 901 888 178.3
B 12 111 19756 114.04 893 875 165.6
B 3 112 19082 109.97 893 875 165.6
B 11 111 17906 102.87 893 875 165.6
C 14 238 137565 708.44 835 842 193.0
C 2 16 31397 158.32 835 842 193.0
C 5 112 16431 80.78 835 842 193.0
D 8 195 358286 1723.04 850 825 207.5
D 1 52 93949 448.88 850 825 207.5
D 2 234 20985 97.18 850 825 207.5

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