ASTROSAT CZTI

Data Quality Report

Orbit 19139

Creation date: 2024-06-27T17:59:27.640083
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/AS1A05_046T01_9000002838_19139cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19139cztM0_level2_quad_clean.evt
Size (bytes)276,033,60046,494,720
Size263.2 MB 44.3 MB
Events in quadrant A1,765,435284,506
Events in quadrant B1,887,594293,647
Events in quadrant C1,805,606283,813
Events in quadrant D2,634,291270,383

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127414754
B0134375208
C0129214997
D0168186337

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012850
B012650
C012745
D012848

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052
B053
C053
D052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A395360.151783%
B3912290.741309%
C3892280.719424%
D38161463.825996%

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 6185 4197 0 0 0.00% 0.00%
B 6276 4160 10 10 0.16% 0.24%
C 6222 4138 2 2 0.03% 0.05%
D 6296 4079 122 122 1.94% 2.99%

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 3851 36.02 458 448 94.5
A 13 254 3467 31.95 458 448 94.5
A 3 137 3421 31.47 458 448 94.5
B 7 220 49691 563.41 450 439 87.4
B 6 36 24322 273.2 450 439 87.4
B 3 112 17399 194.01 450 439 87.4
C 14 238 67907 653.33 437 441 103.3
C 3 233 20446 193.72 437 441 103.3
C 0 207 9245 85.26 437 441 103.3
D 1 52 843527 7952.94 429 416 106.0
D 11 176 113341 1065.2 429 416 106.0
D 12 233 32633 303.9 429 416 106.0

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