ASTROSAT CZTI

Data Quality Report

Orbit 19324

Creation date: 2024-06-27T18:01:24.424308
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/AS1A05_204T01_9000002856_19324cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19324cztM0_level2_quad_clean.evt
Size (bytes)709,891,20096,168,960
Size677.0 MB 91.7 MB
Events in quadrant A3,121,112711,017
Events in quadrant B3,183,660710,983
Events in quadrant C3,207,582682,362
Events in quadrant D11,578,988386,135

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130461
B0132321
C0131981
D0385402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6023891.477669%
B60241001.660027%
C60241342.224436%
D6023374762.211522%

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 7343 6023 0 0 0.00% 0.00%
B 7344 6025 3 3 0.04% 0.05%
C 7344 6024 0 0 0.00% 0.00%
D 7342 6022 3372 3372 45.93% 55.99%

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 11 29 15047 88.61 807 792 160.9
A 13 254 7443 41.34 807 792 160.9
A 0 226 7059 38.95 807 792 160.9
B 0 190 41020 273.82 791 772 147.0
B 0 198 17148 111.41 791 772 147.0
B 12 111 16992 110.35 791 772 147.0
C 14 238 120985 670.59 773 780 179.3
C 3 233 56365 310.09 773 780 179.3
C 10 223 17714 94.47 773 780 179.3
D 7 238 9132278 76540.13 497 485 119.3
D 1 52 306400 2564.09 497 485 119.3
D 11 176 115874 967.16 497 485 119.3

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