ASTROSAT CZTI

Data Quality Report

Orbit 01383

Creation date: 2024-06-27T14:11:52.077773
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/AS1G04_014T02_9000000232_01383cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01383cztM0_level2_quad_clean.evt
Size (bytes)1,232,562,24096,376,320
Size1.1 GB 91.9 MB
Events in quadrant A10,578,712618,263
Events in quadrant B9,109,327644,903
Events in quadrant C7,908,096622,651
Events in quadrant D9,292,261567,822

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0361542
B0317431
C0281691
D0324841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66664917.365737%
B6666911.365137%
C6666380.570057%
D666682112.316232%

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 7361 6666 1209 1209 16.42% 18.14%
B 7361 6667 597 597 8.11% 8.95%
C 7361 6666 157 157 2.13% 2.36%
D 7361 6666 1100 1100 14.94% 16.50%

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 15 127 2641255 5374.52 2022 2035 491.1
A 3 80 128761 258.06 2022 2035 491.1
A 0 253 22743 42.17 2022 2035 491.1
B 8 4 570863 1129.91 2127 2134 503.3
B 12 52 136228 266.41 2127 2134 503.3
B 15 22 96044 186.57 2127 2134 503.3
C 15 241 224039 406.37 1955 2023 546.3
C 3 79 25905 43.71 1955 2023 546.3
C 3 111 24183 40.56 1955 2023 546.3
D 13 73 2468689 4434.71 1790 1854 556.3
D 9 53 34700 59.05 1790 1854 556.3
D 5 234 34442 58.58 1790 1854 556.3

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