ASTROSAT CZTI

Data Quality Report

Orbit 31042

Creation date: 2024-06-27T20:22:39.676649
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/AS1A10_071T63_9000004486_31042cztM0_level2.evt modeM0/AS1A10_071T63_9000004486_31042cztM0_level2_quad_clean.evt
Size (bytes)285,477,12038,574,720
Size272.3 MB 36.8 MB
Events in quadrant A1,754,076233,122
Events in quadrant B2,783,865232,467
Events in quadrant C1,807,258222,371
Events in quadrant D2,048,057218,089

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075671
B0111291
C076331
D082005

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3696691.866883%
B36971042.813092%
C3697922.488504%
D3696511.379870%

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 3696 3696 0 0 0.00% 0.00%
B 3697 3697 0 0 0.00% 0.00%
C 3697 3697 0 0 0.00% 0.00%
D 3696 3696 10 10 0.27% 0.27%

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 13 254 6874 68.88 454 444 93.3
A 3 137 4842 47.11 454 444 93.3
A 0 226 3808 36.03 454 444 93.3
B 6 159 994874 11120.23 445 432 89.4
B 0 190 11478 123.52 445 432 89.4
B 12 111 11056 118.8 445 432 89.4
C 14 238 69312 665.89 432 433 103.4
C 3 233 19593 185.23 432 433 103.4
C 0 10 14734 138.25 432 433 103.4
D 8 195 316273 2932.12 437 425 107.7
D 13 174 25097 229.04 437 425 107.7
D 2 250 23658 215.68 437 425 107.7

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