ASTROSAT CZTI

Data Quality Report

Orbit 17184

Creation date: 2024-06-27T17:33:18.813864
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/AS1A05_185T04_9000002548_17184cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17184cztM0_level2_quad_clean.evt
Size (bytes)513,224,64088,992,000
Size489.4 MB 84.9 MB
Events in quadrant A3,427,758565,458
Events in quadrant B3,768,830563,608
Events in quadrant C3,413,245541,743
Events in quadrant D4,444,325522,665

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150132
B0159532
C0148783
D0183662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7192540.750834%
B71921522.113459%
C7191861.195939%
D71922914.046162%

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 9037 7194 0 0 0.00% 0.00%
B 9037 7194 16 16 0.18% 0.22%
C 9036 7193 0 0 0.00% 0.00%
D 9037 7194 201 201 2.22% 2.79%

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 12 189 82484 461.35 870 849 176.9
A 0 226 7763 39.07 870 849 176.9
A 12 194 6435 31.57 870 849 176.9
B 0 219 125775 746.47 869 847 167.4
B 7 220 111982 664.06 869 847 167.4
B 4 216 37480 218.89 869 847 167.4
C 14 238 128856 652.96 836 841 196.1
C 3 233 19551 95.43 836 841 196.1
C 13 61 6167 27.17 836 841 196.1
D 5 222 971443 4706.75 834 809 206.2
D 10 70 221233 1068.87 834 809 206.2
D 2 234 31460 148.63 834 809 206.2

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