ASTROSAT CZTI

Data Quality Report

Orbit 27145

Creation date: 2024-06-27T19:36:59.792411
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/AS1T03_244T01_9000003912_27145cztM0_level2.evt modeM0/AS1T03_244T01_9000003912_27145cztM0_level2_quad_clean.evt
Size (bytes)213,278,40031,233,600
Size203.4 MB 29.8 MB
Events in quadrant A1,463,676181,453
Events in quadrant B1,596,731185,113
Events in quadrant C1,522,429177,910
Events in quadrant D1,657,519173,861

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066170
B068210
C066660
D072880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3195200.625978%
B3196411.282854%
C3196341.063830%
D3196371.157697%

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 3615 3197 0 0 0.00% 0.00%
B 3616 3198 4 4 0.11% 0.13%
C 3616 3198 0 0 0.00% 0.00%
D 3616 3198 26 26 0.72% 0.81%

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 6 16 6514 80.7 375 367 76.2
A 8 192 5806 71.4 375 367 76.2
A 13 254 5376 65.76 375 367 76.2
B 3 64 55482 731.68 379 367 75.3
B 3 112 36612 481.17 379 367 75.3
B 12 111 9153 116.63 379 367 75.3
C 14 238 57510 646.61 367 368 88.4
C 15 208 15333 169.34 367 368 88.4
C 8 128 7027 75.35 367 368 88.4
D 7 38 114172 1224.55 362 353 92.9
D 2 250 90123 965.81 362 353 92.9
D 1 52 34010 362.11 362 353 92.9

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