ASTROSAT CZTI

Data Quality Report

Orbit 11594

Creation date: 2024-06-27T16:15:39.930958
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/AS1A04_130T04_9000001704_11594cztM0_level2.evt modeM0/AS1A04_130T04_9000001704_11594cztM0_level2_quad_clean.evt
Size (bytes)711,996,48087,177,600
Size679.0 MB 83.1 MB
Events in quadrant A5,704,038554,336
Events in quadrant B4,515,822571,528
Events in quadrant C2,932,602575,444
Events in quadrant D7,994,875508,481

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212482
B0172331
C0125861
D0279061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A614970811.514067%
B61494907.968775%
C6149731.187185%
D6149175428.524963%

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 7360 6151 379 379 5.15% 6.16%
B 7360 6151 246 246 3.34% 4.00%
C 7360 6151 0 0 0.00% 0.00%
D 7360 6151 1620 1620 22.01% 26.34%

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 2424929 15955.6 753 738 151.9
A 1 162 133440 873.42 753 738 151.9
A 1 178 81522 531.71 753 738 151.9
B 4 239 943995 6620.74 753 735 142.5
B 3 64 388154 2719.29 753 735 142.5
B 11 51 83541 581.21 753 735 142.5
C 13 61 5518 27.5 751 755 173.2
C 12 4 2467 9.88 751 755 173.2
C 14 67 1966 6.99 751 755 173.2
D 13 122 4686107 27769.14 706 687 168.7
D 8 195 297924 1761.64 706 687 168.7
D 1 52 209667 1238.56 706 687 168.7

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