ASTROSAT CZTI

Data Quality Report

Orbit 11450

Creation date: 2024-06-27T16:12:55.842718
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_021T02_9000001676_11450cztM0_level2.evt modeM0/AS1A04_021T02_9000001676_11450cztM0_level2_quad_clean.evt
Size (bytes)216,276,48058,711,680
Size206.3 MB 56.0 MB
Events in quadrant A1,395,800393,467
Events in quadrant B1,885,122386,236
Events in quadrant C1,335,542413,918
Events in quadrant D1,741,177383,933

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059030
B074160
C057190
D070660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A280330.107028%
B2803832.961113%
C280300.000000%
D2803652.318944%

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 2804 2804 0 0 0.00% 0.00%
B 2804 2804 53 53 1.89% 1.89%
C 2804 2804 0 0 0.00% 0.00%
D 2804 2804 52 52 1.85% 1.85%

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 24871 349.9 344 338 70.1
A 1 178 15027 209.5 344 338 70.1
A 1 161 12449 172.73 344 338 70.1
B 4 239 371634 5790.13 335 327 64.1
B 11 51 90042 1399.01 335 327 64.1
B 15 204 39713 614.18 335 327 64.1
C 13 61 2452 26.28 342 345 80.2
C 14 234 873 6.58 342 345 80.2
C 3 202 852 6.32 342 345 80.2
D 13 104 215425 2692.83 339 331 79.9
D 1 52 68316 851.13 339 331 79.9
D 8 195 66718 831.12 339 331 79.9

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