ASTROSAT CZTI

Data Quality Report

Orbit 01203

Creation date: 2024-06-27T14:09:05.381759
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_007T02_9000000220_01203cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01203cztM0_level2_quad_clean.evt
Size (bytes)1,075,950,72098,637,120
Size1.0 GB 94.1 MB
Events in quadrant A7,902,434652,734
Events in quadrant B8,249,918649,883
Events in quadrant C7,718,617627,078
Events in quadrant D8,288,109608,541

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280842
B0291231
C0274811
D0292241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6442841.303943%
B64421302.018007%
C6442590.915865%
D64422123.290903%

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 7347 6443 285 285 3.88% 4.42%
B 7347 6443 388 388 5.28% 6.02%
C 7347 6443 249 249 3.39% 3.86%
D 7347 6443 608 608 8.28% 9.44%

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 80296 161.12 2023 2036 485.7
A 4 32 39897 77.95 2023 2036 485.7
A 12 243 23707 44.62 2023 2036 485.7
B 0 187 118273 232.66 2090 2094 499.3
B 8 4 43644 83.21 2090 2094 499.3
B 5 191 37589 71.08 2090 2094 499.3
C 15 241 336036 641.59 1870 1931 520.7
C 12 4 29974 53.85 1870 1931 520.7
C 3 111 22518 39.53 1870 1931 520.7
D 1 83 649323 1146.11 1826 1891 564.9
D 12 22 431013 759.65 1826 1891 564.9
D 2 16 136112 237.6 1826 1891 564.9

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