ASTROSAT CZTI

Data Quality Report

Orbit 00411

Creation date: 2024-06-27T13:59:28.694328
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/AS1P01_161T03_9000000070_00411cztM0_level2.evt modeM0/AS1P01_161T03_9000000070_00411cztM0_level2_quad_clean.evt
Size (bytes)764,933,76040,242,240
Size729.5 MB 38.4 MB
Events in quadrant A5,744,914225,492
Events in quadrant B5,964,508214,499
Events in quadrant C5,565,314222,714
Events in quadrant D5,563,729210,229

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205802
B0212301
C0200031
D0200251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A492050.101626%
B4920480.975610%
C4920210.426829%
D4920340.691057%

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 6984 4921 109 109 1.56% 2.21%
B 6984 4921 153 153 2.19% 3.11%
C 6984 4921 110 110 1.58% 2.24%
D 6984 4921 119 119 1.70% 2.42%

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 12 133 100418 309.48 1429 1416 319.9
A 0 238 37820 113.8 1429 1416 319.9
A 12 243 22787 66.81 1429 1416 319.9
B 2 32 323520 951.69 1451 1460 338.4
B 0 23 20835 57.25 1451 1460 338.4
B 14 53 20276 55.6 1451 1460 338.4
C 1 1 337579 904.22 1326 1380 371.8
C 9 206 13630 32.95 1326 1380 371.8
C 3 159 5980 12.37 1326 1380 371.8
D 13 7 440635 1115.79 1249 1300 393.7
D 13 221 111775 280.58 1249 1300 393.7
D 1 5 64014 159.28 1249 1300 393.7

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