ASTROSAT CZTI

Data Quality Report

Orbit 14067

Creation date: 2024-06-27T16:49:56.024012
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_055T01_9000002076_14067cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14067cztM0_level2_quad_clean.evt
Size (bytes)509,754,240114,690,240
Size486.1 MB 109.4 MB
Events in quadrant A3,197,118779,230
Events in quadrant B3,478,155784,407
Events in quadrant C3,116,362757,720
Events in quadrant D5,226,815720,154

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134612
B0142701
C0132791
D0200281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6191570.920691%
B6191651.049911%
C6191420.678404%
D61911652.665159%

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 7477 6193 0 0 0.00% 0.00%
B 7477 6193 7 7 0.09% 0.11%
C 7477 6193 2 2 0.03% 0.03%
D 7477 6193 129 129 1.73% 2.08%

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 12 189 58098 354.96 813 799 161.4
A 8 15 12374 71.71 813 799 161.4
A 0 226 7515 41.6 813 799 161.4
B 4 48 59140 396.59 806 790 147.1
B 0 189 51570 345.14 806 790 147.1
B 0 219 48362 323.33 806 790 147.1
C 3 233 91711 522.16 771 776 174.2
C 0 207 20028 110.55 771 776 174.2
C 13 61 5645 27.96 771 776 174.2
D 10 172 651308 3584.76 768 751 181.5
D 1 52 481597 2649.6 768 751 181.5
D 8 195 288780 1587.12 768 751 181.5

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