ASTROSAT CZTI

Data Quality Report

Orbit 13180

Creation date: 2024-06-27T16:37:17.633051
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/AS1G08_034T01_9000001944_13180cztM0_level2.evt modeM0/AS1G08_034T01_9000001944_13180cztM0_level2_quad_clean.evt
Size (bytes)61,145,28011,528,640
Size58.3 MB 11.0 MB
Events in quadrant A593,85070,983
Events in quadrant B402,66975,909
Events in quadrant C278,31876,632
Events in quadrant D529,00771,311

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022010
B016530
C013350
D020070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66211417.220544%
B662152.265861%
C66200.000000%
D662253.776435%

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 663 663 94 94 14.18% 14.18%
B 663 663 11 11 1.66% 1.66%
C 663 663 0 0 0.00% 0.00%
D 663 663 20 20 3.02% 3.02%

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 23 271944 16969.21 66 64 16.0
A 12 189 40868 2546.75 66 64 16.0
A 0 226 18017 1120.52 66 64 16.0
B 4 239 91389 5754.4 69 67 15.9
B 3 64 19244 1208.39 69 67 15.9
B 5 32 6067 378.07 69 67 15.9
C 15 208 4615 250.06 70 70 18.2
C 13 61 492 23.22 70 70 18.2
C 3 202 163 5.12 70 70 18.2
D 13 122 158471 8592.41 67 65 18.4
D 10 157 60844 3296.83 67 65 18.4
D 1 52 32231 1744.78 67 65 18.4

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