ASTROSAT CZTI

Data Quality Report

Orbit 31594

Creation date: 2024-06-27T20:30:28.250397
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/AS1C06_002T03_9000004610_31594cztM0_level2.evt modeM0/AS1C06_002T03_9000004610_31594cztM0_level2_quad_clean.evt
Size (bytes)645,356,160129,139,200
Size615.5 MB 123.2 MB
Events in quadrant A3,175,994897,352
Events in quadrant B6,265,556866,620
Events in quadrant C5,168,587837,371
Events in quadrant D4,481,498842,263

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139002
B0235272
C0198562
D0179315

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6701330.492464%
B67012483.700940%
C67014036.014028%
D67001612.402985%

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 7671 6701 0 0 0.00% 0.00%
B 7671 6701 77 77 1.00% 1.15%
C 7671 6701 157 157 2.05% 2.34%
D 7670 6700 91 91 1.19% 1.36%

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 13 254 13950 80.08 821 805 164.1
A 3 137 7912 43.3 821 805 164.1
A 0 226 7189 38.89 821 805 164.1
B 6 159 2088227 13992.61 798 777 149.2
B 12 1 584193 3910.76 798 777 149.2
B 5 172 196327 1310.81 798 777 149.2
C 3 233 1794359 9946.43 775 777 180.3
C 14 238 123591 681.07 775 777 180.3
C 4 175 64048 350.87 775 777 180.3
D 8 195 881933 4591.82 796 773 191.9
D 12 218 228113 1184.69 796 773 191.9
D 12 6 135311 701.09 796 773 191.9

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