ASTROSAT CZTI

Data Quality Report

Orbit 46907

Creation date: 2024-06-27T23:29:07.437009
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/AS1A13_068T05_9000006280_46907cztM0_level2.fits modeM0/AS1A13_068T05_9000006280_46907cztM0_level2_quad_clean.evt
Size (bytes)414,774,72071,349,120
Size395.6 MB 68.0 MB
Events in quadrant A4,261,207488,535
Events in quadrant B3,810,203499,216
Events in quadrant C1,969,928486,880
Events in quadrant D4,958,325365,256

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152241
B0144171
C092341
D0178121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A45551352.963776%
B45552455.378705%
C4555170.373216%
D455596121.097695%

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 4555 4555 18 18 0.40% 0.40%
B 4555 4555 169 169 3.71% 3.71%
C 4555 4555 2 2 0.04% 0.04%
D 4555 4555 905 905 19.87% 19.87%

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 10 83 2237829 21144.34 503 492 105.8
A 13 248 71365 669.8 503 492 105.8
A 13 6 6272 54.62 503 492 105.8
B 3 112 1785624 17847.09 497 481 100.0
B 15 36 17177 166.92 497 481 100.0
B 12 111 12557 120.73 497 481 100.0
C 14 254 21164 175.55 496 499 117.7
C 14 67 8124 64.77 496 499 117.7
C 15 208 4295 32.25 496 499 117.7
D 2 37 1338599 11586.13 455 440 115.5
D 10 181 760682 6582.38 455 440 115.5
D 12 0 386381 3341.58 455 440 115.5

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