ASTROSAT CZTI

Data Quality Report

Orbit 05935

Creation date: 2024-06-27T15:00:59.606687
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/AS1G06_028T01_9000000768_05935cztM0_level2.evt modeM0/AS1G06_028T01_9000000768_05935cztM0_level2_quad_clean.evt
Size (bytes)161,115,84015,765,120
Size153.7 MB 15.0 MB
Events in quadrant A1,123,28773,331
Events in quadrant B1,183,35476,038
Events in quadrant C1,114,96774,711
Events in quadrant D1,283,00070,437

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050870
B051610
C050820
D054380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A253730.118250%
B253720.078833%
C253710.039417%
D253700.000000%

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 2537 2537 0 0 0.00% 0.00%
B 2537 2537 0 0 0.00% 0.00%
C 2537 2537 0 0 0.00% 0.00%
D 2537 2537 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 0 50 4859 75.49 290 284 60.6
A 0 226 2801 41.53 290 284 60.6
A 12 194 2764 40.92 290 284 60.6
B 15 204 14405 243.38 298 292 58.0
B 0 219 7030 116.2 298 292 58.0
B 15 85 6156 101.13 298 292 58.0
C 13 61 2306 30.06 285 287 67.2
C 1 16 2192 28.37 285 287 67.2
C 3 202 668 5.67 285 287 67.2
D 8 195 144836 2040.72 280 271 70.8
D 2 63 64656 908.88 280 271 70.8
D 2 206 9712 133.27 280 271 70.8

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