ASTROSAT CZTI

Data Quality Report

Orbit 13138

Creation date: 2024-06-27T16:36:49.176137
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_061T01_9000001938_13138cztM0_level2.evt modeM0/AS1G08_061T01_9000001938_13138cztM0_level2_quad_clean.evt
Size (bytes)207,011,52017,475,840
Size197.4 MB 16.7 MB
Events in quadrant A1,112,390101,222
Events in quadrant B1,995,09392,184
Events in quadrant C1,050,249103,419
Events in quadrant D1,968,08580,642

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045821
B073421
C043741
D072291

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2085351.678657%
B208541319.808153%
C2085311.486811%
D208536017.266187%

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 3061 2087 0 0 0.00% 0.00%
B 3061 2087 235 235 7.68% 11.26%
C 3061 2087 0 0 0.00% 0.00%
D 3061 2087 294 294 9.60% 14.09%

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 12 189 16601 291.49 269 264 56.0
A 1 162 15927 279.46 269 264 56.0
A 4 2 15808 277.34 269 264 56.0
B 4 239 603909 12366.09 245 239 48.8
B 0 85 363775 7446.98 245 239 48.8
B 3 64 30366 617.15 245 239 48.8
C 15 208 4949 73.86 268 269 63.4
C 13 61 1965 26.77 268 269 63.4
C 8 222 692 6.68 268 269 63.4
D 1 52 1006837 16452.52 249 241 61.2
D 2 234 8908 141.66 249 241 61.2
D 14 35 8155 129.35 249 241 61.2

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