ASTROSAT CZTI

Data Quality Report

Orbit 49613

Creation date: 2024-12-04T08:24:46.227626
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/AS1T05_233T01_9000006438_49613cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49613cztM0_level2_quad_clean.evt
Size (bytes)1,705,720,32045,112,320
Size1.6 GB 43.0 MB
Events in quadrant A13,376,53219,194
Events in quadrant B7,842,329713,438
Events in quadrant C4,004,4345,155
Events in quadrant D37,145,85475,729

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0451470
B0286510
C0177070
D0604320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77777777100.000000%
B7777120215.455831%
C77787778100.000000%
D77787778100.000000%

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 7776 7776 2067 2067 26.58% 26.58%
B 7777 7777 873 873 11.23% 11.23%
C 7777 7777 1 1 0.01% 0.01%
D 7777 7777 7695 7695 98.95% 98.95%

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 99 8536963 223519.29 47 41 38.2
A 0 98 1551108 40611.05 47 41 38.2
A 10 83 755870 19789.61 47 41 38.2
B 3 232 896509 5605.82 754 731 159.8
B 5 49 734153 4589.79 754 731 159.8
B 4 206 578524 3615.85 754 731 159.8
C 15 181 682611 66891.05 9 8 10.2
C 15 197 438220 42942.18 9 8 10.2
C 15 180 401843 39377.45 9 8 10.2
D 15 184 7563152 32330.77 246 210 233.9
D 15 40 6389240 27312.42 246 210 233.9
D 15 140 3036688 12980.62 246 210 233.9

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