ASTROSAT CZTI

Data Quality Report

Orbit 02997

Creation date: 2024-06-27T14:23:14.049964
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/AS1G05_238T05_9000000418_02997cztM0_level2.evt modeM0/AS1G05_238T05_9000000418_02997cztM0_level2_quad_clean.evt
Size (bytes)516,654,72068,279,040
Size492.7 MB 65.1 MB
Events in quadrant A4,864,303429,147
Events in quadrant B5,749,250419,911
Events in quadrant C2,294,793443,821
Events in quadrant D2,408,268431,576

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178242
B0204151
C0101411
D0106494

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48814699.608687%
B488166413.603770%
C488170.143413%
D4880511.045082%

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 7039 4883 352 352 5.00% 7.21%
B 7039 4883 675 675 9.59% 13.82%
C 7039 4883 8 8 0.11% 0.16%
D 7038 4882 41 41 0.58% 0.84%

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 14 249 1645138 15259.95 526 516 107.8
A 13 9 1135279 10529.12 526 516 107.8
A 14 63 12670 112.77 526 516 107.8
B 15 204 3276185 32794.15 527 516 99.9
B 8 3 215170 2148.99 527 516 99.9
B 2 249 95040 946.32 527 516 99.9
C 0 219 84629 684.66 527 528 122.8
C 1 192 68622 554.35 527 528 122.8
C 6 80 57444 463.35 527 528 122.8
D 13 239 76993 595.44 527 510 128.4
D 13 114 47726 367.59 527 510 128.4
D 2 136 44216 340.26 527 510 128.4

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