ASTROSAT CZTI

Data Quality Report

Orbit 11560

Creation date: 2024-06-27T16:14:53.957194
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_009T01_9000001696_11560cztM0_level2.evt modeM0/AS1G08_009T01_9000001696_11560cztM0_level2_quad_clean.evt
Size (bytes)568,540,80065,010,240
Size542.2 MB 62.0 MB
Events in quadrant A5,061,903374,265
Events in quadrant B4,221,879379,868
Events in quadrant C3,076,255386,586
Events in quadrant D4,408,443364,216

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195453
B0167572
C0136012
D0175422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66373895.861082%
B66372423.646226%
C6637400.602682%
D66372073.118879%

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 7658 6639 198 198 2.59% 2.98%
B 7658 6639 116 116 1.51% 1.75%
C 7658 6639 0 0 0.00% 0.00%
D 7658 6639 151 151 1.97% 2.27%

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 8 5 1535899 9505.55 792 775 161.5
A 1 162 135849 836.38 792 775 161.5
A 1 178 86254 529.29 792 775 161.5
B 4 239 657824 4252.75 807 787 154.5
B 15 204 233214 1504.41 807 787 154.5
B 11 51 109025 700.58 807 787 154.5
C 13 61 5745 27.06 788 794 183.0
C 14 234 5249 24.35 788 794 183.0
C 3 202 1872 5.89 788 794 183.0
D 1 52 777630 4168.76 774 752 186.4
D 13 137 482780 2586.58 774 752 186.4
D 10 199 40126 211.28 774 752 186.4

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