ASTROSAT CZTI

Data Quality Report

Orbit 03173

Creation date: 2024-06-27T14:25:31.812342
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_218T02_9000000434_03173cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03173cztM0_level2_quad_clean.evt
Size (bytes)521,303,04096,701,760
Size497.2 MB 92.2 MB
Events in quadrant A3,269,685625,590
Events in quadrant B3,439,216631,183
Events in quadrant C3,694,876607,746
Events in quadrant D4,904,787572,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148672
B0152071
C0160401
D0196491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70501472.085106%
B70501181.673759%
C70501922.723404%
D70505708.085106%

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 7460 7050 5 5 0.07% 0.07%
B 7460 7051 14 14 0.19% 0.20%
C 7460 7051 78 78 1.05% 1.11%
D 7460 7050 393 393 5.27% 5.57%

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 158680 975.75 792 773 161.8
A 12 247 30684 184.83 792 773 161.8
A 3 1 16645 98.08 792 773 161.8
B 4 80 168308 1081.54 800 781 154.9
B 2 249 45765 290.41 800 781 154.9
B 0 219 33118 208.77 800 781 154.9
C 1 192 634437 3563.13 762 762 177.8
C 6 80 39058 215.34 762 762 177.8
C 14 223 28503 155.99 762 762 177.8
D 5 233 847603 4444.07 741 720 190.6
D 2 136 570765 2991.35 741 720 190.6
D 10 199 326442 1709.25 741 720 190.6

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