ASTROSAT CZTI

Data Quality Report

Orbit 27203

Creation date: 2024-06-27T19:37:40.912985
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/AS1T03_243T01_9000003918_27203cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27203cztM0_level2_quad_clean.evt
Size (bytes)845,326,080102,306,240
Size806.2 MB 97.6 MB
Events in quadrant A3,996,523678,351
Events in quadrant B8,518,822613,683
Events in quadrant C3,964,857655,988
Events in quadrant D8,568,768581,644

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171990
B0306490
C0170400
D0310450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81721261.541850%
B8173183622.464211%
C81731942.373669%
D8173116514.254252%

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 8627 8174 2 2 0.02% 0.02%
B 8628 8173 1078 1078 12.49% 13.19%
C 8628 8175 0 0 0.00% 0.00%
D 8628 8173 886 886 10.27% 10.84%

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 13 248 35284 165.67 1022 998 206.9
A 8 192 13607 60.93 1022 998 206.9
A 13 254 13113 58.54 1022 998 206.9
B 3 64 4717967 26186.32 927 903 180.1
B 15 33 60518 330.95 927 903 180.1
B 12 111 22181 118.12 927 903 180.1
C 14 238 152714 657.69 974 978 230.7
C 15 208 9857 38.49 974 978 230.7
C 13 61 6565 24.22 974 978 230.7
D 1 52 3069479 12583.81 926 903 243.9
D 13 168 739913 3030.58 926 903 243.9
D 5 222 288130 1177.88 926 903 243.9

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