ASTROSAT CZTI

Data Quality Report

Orbit 09731

Creation date: 2024-06-27T15:49:58.409096
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/AS1A02_029T01_9000001386_09731cztM0_level2.evt modeM0/AS1A02_029T01_9000001386_09731cztM0_level2_quad_clean.evt
Size (bytes)193,230,72045,722,880
Size184.3 MB 43.6 MB
Events in quadrant A1,342,901294,655
Events in quadrant B1,447,350297,899
Events in quadrant C1,295,829295,760
Events in quadrant D1,559,219281,765

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0607732
B0624942
C0606343
D0667960

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0602
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A301340.132758%
B300850.166223%
C300710.033256%
D3008260.864362%

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 3029 3029 0 0 0.00% 0.00%
B 3029 3028 4 4 0.13% 0.13%
C 3029 3027 0 0 0.00% 0.00%
D 3029 3027 16 16 0.53% 0.53%

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 0 226 3279 39.97 347 339 73.6
A 12 194 2992 36.07 347 339 73.6
A 13 248 2836 33.94 347 339 73.6
B 0 219 46969 681.42 344 336 68.4
B 10 245 35519 514.11 344 336 68.4
B 0 214 9795 138.22 344 336 68.4
C 13 61 2447 26.78 331 333 78.9
C 8 222 1367 13.1 331 333 78.9
C 9 54 1280 12.0 331 333 78.9
D 1 52 126147 1523.68 333 324 82.6
D 12 233 103120 1244.83 333 324 82.6
D 7 71 29775 356.64 333 324 82.6

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