ASTROSAT CZTI

Data Quality Report

Orbit 29967

Creation date: 2024-06-27T20:09:18.173825
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/AS1A10_058T01_9000004298_29967cztM0_level2.evt modeM0/AS1A10_058T01_9000004298_29967cztM0_level2_quad_clean.evt
Size (bytes)298,949,76016,056,000
Size285.1 MB 15.3 MB
Events in quadrant A1,170,09385,813
Events in quadrant B2,155,83879,832
Events in quadrant C4,243,63660,484
Events in quadrant D1,313,70179,847

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050590
B081530
C0143380
D054350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A249330.120337%
B24941114.450682%
C2494101040.497193%
D2494271.082598%

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 2493 2493 0 0 0.00% 0.00%
B 2494 2494 60 60 2.41% 2.41%
C 2494 2494 778 778 31.19% 31.19%
D 2494 2494 18 18 0.72% 0.72%

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 96 19218 311.86 298 292 60.7
A 13 254 4689 72.45 298 292 60.7
A 3 137 2872 42.51 298 292 60.7
B 6 159 701776 12493.53 288 281 56.1
B 6 36 295757 5262.39 288 281 56.1
B 4 67 6776 115.68 288 281 56.1
C 3 233 3215809 53831.59 251 252 59.7
C 14 238 41001 682.18 251 252 59.7
C 2 114 5295 84.42 251 252 59.7
D 12 233 98735 1438.2 283 275 68.5
D 8 195 92469 1346.67 283 275 68.5
D 7 80 33404 483.91 283 275 68.5

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