ASTROSAT CZTI

Data Quality Report

Orbit 12128

Creation date: 2024-06-27T16:22:46.254238
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_065T01_9000001796_12128cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12128cztM0_level2_quad_clean.evt
Size (bytes)544,481,28070,770,240
Size519.3 MB 67.5 MB
Events in quadrant A4,130,161433,950
Events in quadrant B4,522,509420,776
Events in quadrant C3,298,645424,161
Events in quadrant D4,099,711412,054

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166053
B0178912
C0137972
D0165512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64741201.853568%
B64742513.877047%
C6474480.741427%
D64741302.008032%

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 7780 6476 16 16 0.21% 0.25%
B 7780 6476 100 100 1.29% 1.54%
C 7780 6476 2 2 0.03% 0.03%
D 7780 6476 73 73 0.94% 1.13%

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 14 63 531724 3070.45 872 856 172.9
A 1 162 83060 475.45 872 856 172.9
A 13 248 61425 350.32 872 856 172.9
B 4 239 595554 3770.28 855 837 157.7
B 15 201 142410 897.52 855 837 157.7
B 15 204 136003 856.9 855 837 157.7
C 15 208 12071 58.72 842 849 191.1
C 13 61 6221 28.11 842 849 191.1
C 14 234 4177 17.41 842 849 191.1
D 1 52 427059 2132.86 843 823 199.8
D 10 50 104424 518.41 843 823 199.8
D 8 195 92627 459.38 843 823 199.8

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