ASTROSAT CZTI

Data Quality Report

Orbit 24288

Creation date: 2024-06-27T19:04:22.748818
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_047T08_9000003590_24288cztM0_level2.evt modeM0/AS1A07_047T08_9000003590_24288cztM0_level2_quad_clean.evt
Size (bytes)534,407,040151,796,160
Size509.7 MB 144.8 MB
Events in quadrant A3,429,5281,055,650
Events in quadrant B3,542,6331,084,130
Events in quadrant C3,628,1931,024,134
Events in quadrant D5,142,280979,130

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140302
B0144342
C0146162
D0198492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6524610.935009%
B65241041.594114%
C65241161.778050%
D65241582.421827%

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 7869 6524 0 0 0.00% 0.00%
B 7869 6524 3 3 0.04% 0.05%
C 7869 6524 0 0 0.00% 0.00%
D 7869 6524 104 104 1.32% 1.59%

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 2 79 12707 69.02 886 870 171.5
A 13 254 10856 58.23 886 870 171.5
A 0 226 7511 38.72 886 870 171.5
B 15 33 50990 311.57 889 871 160.9
B 12 111 18249 108.03 889 871 160.9
B 11 111 16125 94.83 889 871 160.9
C 14 238 142405 722.94 864 872 195.8
C 2 16 96793 489.96 864 872 195.8
C 7 247 15533 74.89 864 872 195.8
D 1 52 1010533 4955.61 861 839 203.7
D 8 195 802953 3936.8 861 839 203.7
D 12 233 40786 196.06 861 839 203.7

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