ASTROSAT CZTI

Data Quality Report

Orbit 13093

Creation date: 2024-06-27T16:36:09.523188
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/AS1A04_067T01_9000001926_13093cztM0_level2.evt modeM0/AS1A04_067T01_9000001926_13093cztM0_level2_quad_clean.evt
Size (bytes)230,794,56036,973,440
Size220.1 MB 35.3 MB
Events in quadrant A1,431,758231,885
Events in quadrant B1,946,852212,901
Events in quadrant C1,872,959228,611
Events in quadrant D1,522,487221,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063440
B078810
C077670
D067050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A313930.095572%
B31392588.219178%
C31391233.918445%
D3139140.446002%

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 3140 3140 0 0 0.00% 0.00%
B 3140 3140 120 120 3.82% 3.82%
C 3140 3140 98 98 3.12% 3.12%
D 3140 3140 12 12 0.38% 0.38%

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 53581 740.58 346 339 71.9
A 8 15 16737 228.09 346 339 71.9
A 5 16 10467 140.88 346 339 71.9
B 4 239 512188 8097.86 327 319 63.2
B 3 64 80674 1271.23 327 319 63.2
B 3 209 26965 421.54 327 319 63.2
C 15 208 554584 7025.76 334 336 78.9
C 14 234 5281 62.68 334 336 78.9
C 8 128 5061 59.9 334 336 78.9
D 1 52 208025 2473.78 338 327 84.0
D 2 234 22533 264.48 338 327 84.0
D 13 172 7396 84.19 338 327 84.0

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