ASTROSAT CZTI

Data Quality Report

Orbit 34272

Creation date: 2022-07-18T16:46:11.173813
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/AS1A11_059T09_9000004888_34272cztM0_level2.evt modeM0/AS1A11_059T09_9000004888_34272cztM0_level2_quad_clean.evt
Size (bytes)313,715,52036,262,080
Size299.2 MB 34.6 MB
Events in quadrant A1,665,849213,039
Events in quadrant B2,784,462213,163
Events in quadrant C1,891,097212,098
Events in quadrant D2,908,921199,168

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074020
B0106360
C076660
D0110480

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A367120.054481%
B36713429.316263%
C367170.190684%
D3672611.661220%

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 3671 3671 0 0 0.00% 0.00%
B 3671 3671 236 236 6.43% 6.43%
C 3671 3671 1 1 0.03% 0.03%
D 3672 3672 50 50 1.36% 1.36%

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 13694 154.13 424 415 86.2
A 9 143 7360 80.61 424 415 86.2
A 13 254 5510 59.14 424 415 86.2
B 5 172 832538 10577.65 402 391 78.7
B 4 251 280324 3558.3 402 391 78.7
B 15 85 49960 630.08 402 391 78.7
C 15 214 159111 1643.83 413 415 96.5
C 1 128 30001 306.46 413 415 96.5
C 0 207 28214 287.95 413 415 96.5
D 8 195 839112 8167.41 412 399 102.7
D 7 80 205803 2000.23 412 399 102.7
D 2 250 81584 790.58 412 399 102.7

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