ASTROSAT CZTI

Data Quality Report

Orbit 25632

Creation date: 2024-06-27T19:19:45.323514
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/AS1A09_013T02_9000003734_25632cztM0_level2.evt modeM0/AS1A09_013T02_9000003734_25632cztM0_level2_quad_clean.evt
Size (bytes)277,390,08055,437,120
Size264.5 MB 52.9 MB
Events in quadrant A2,083,589350,558
Events in quadrant B1,979,651363,189
Events in quadrant C1,981,620347,720
Events in quadrant D2,085,247337,480

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086110
B084120
C085030
D088470

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3952200.506073%
B3952320.809717%
C3952641.619433%
D3952200.506073%

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 5127 3953 0 0 0.00% 0.00%
B 5127 3953 0 0 0.00% 0.00%
C 5127 3953 0 0 0.00% 0.00%
D 5127 3953 0 0 0.00% 0.00%

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 8 192 130564 1281.61 501 491 101.5
A 6 16 16751 160.21 501 491 101.5
A 13 254 6307 57.31 501 491 101.5
B 12 111 11485 116.09 503 490 94.7
B 11 111 10174 102.25 503 490 94.7
B 14 111 9226 92.24 503 490 94.7
C 14 238 78553 687.31 487 492 113.6
C 13 61 3311 24.82 487 492 113.6
C 3 233 2503 17.71 487 492 113.6
D 8 195 209732 1716.39 487 475 121.9
D 2 234 16238 129.29 487 475 121.9
D 13 104 12569 99.2 487 475 121.9

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