ASTROSAT CZTI

Data Quality Report

Orbit 11463

Creation date: 2024-06-27T16:13:15.981878
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/AS1A04_021T03_9000001678_11463cztM0_level2.evt modeM0/AS1A04_021T03_9000001678_11463cztM0_level2_quad_clean.evt
Size (bytes)168,223,68028,644,480
Size160.4 MB 27.3 MB
Events in quadrant A739,329209,372
Events in quadrant B1,120,494203,440
Events in quadrant C699,163215,124
Events in quadrant D2,434,790131,004

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030130
B042760
C029170
D081860

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A145120.137836%
B1451795.444521%
C145100.000000%
D145171649.345279%

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 1452 1452 0 0 0.00% 0.00%
B 1452 1452 43 43 2.96% 2.96%
C 1452 1452 0 0 0.00% 0.00%
D 1452 1452 585 585 40.29% 40.29%

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 1 162 7361 181.67 185 182 39.5
A 1 178 4170 100.92 185 182 39.5
A 9 143 3903 94.16 185 182 39.5
B 4 239 333021 9431.17 178 174 35.3
B 3 64 35723 1007.28 178 174 35.3
B 11 51 15411 431.74 178 174 35.3
C 13 61 1332 26.89 179 180 42.8
C 3 202 486 7.14 179 180 42.8
C -1 -1 -1 -1.0 179 180 42.8
D 1 52 1889831 60343.18 125 122 31.3
D 8 195 24272 771.17 125 122 31.3
D 2 120 19112 606.4 125 122 31.3

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