ASTROSAT CZTI

Data Quality Report

Orbit 18410

Creation date: 2024-06-27T17:49:32.041411
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/AS1T03_083T01_9000002728_18410cztM0_level2.evt modeM0/AS1T03_083T01_9000002728_18410cztM0_level2_quad_clean.evt
Size (bytes)487,431,360110,684,160
Size464.9 MB 105.6 MB
Events in quadrant A3,002,788759,649
Events in quadrant B5,041,802759,321
Events in quadrant C2,856,953728,315
Events in quadrant D3,462,195694,494

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126861
B0191851
C0122071
D0141001

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5880550.935374%
B58811833.111716%
C5881330.561129%
D5881791.343309%

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 7075 5881 31 31 0.44% 0.53%
B 7076 5882 30 30 0.42% 0.51%
C 7076 5882 0 0 0.00% 0.00%
D 7076 5882 51 51 0.72% 0.87%

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 15 174 173696 1168.64 732 719 148.0
A 4 2 19999 130.26 732 719 148.0
A 0 226 6352 38.06 732 719 148.0
B 10 245 2098303 15257.42 732 716 137.5
B 0 189 34547 246.08 732 716 137.5
B 0 197 23511 165.81 732 716 137.5
C 14 238 108659 657.18 703 709 164.3
C 13 61 4920 25.64 703 709 164.3
C 8 128 3380 16.26 703 709 164.3
D 8 230 279957 1651.09 697 678 169.1
D 12 110 232943 1373.15 697 678 169.1
D 7 238 151832 893.62 697 678 169.1

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