ASTROSAT CZTI

Data Quality Report

Orbit 31430

Creation date: 2024-06-27T20:28:22.557303
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/AS1A10_094T32_9000004570_31430cztM0_level2.evt modeM0/AS1A10_094T32_9000004570_31430cztM0_level2_quad_clean.evt
Size (bytes)330,508,80075,312,000
Size315.2 MB 71.8 MB
Events in quadrant A1,787,983509,408
Events in quadrant B3,386,439498,877
Events in quadrant C1,871,758499,925
Events in quadrant D2,688,305487,749

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080800
B0131100
C082580
D0105460

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A403130.074423%
B4032641.587302%
C4032862.132937%
D40321704.216270%

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 4031 4031 0 0 0.00% 0.00%
B 4032 4032 37 37 0.92% 0.92%
C 4032 4032 0 0 0.00% 0.00%
D 4032 4032 156 156 3.87% 3.87%

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 12 16 24313 260.9 455 447 91.5
A 13 254 8630 89.46 455 447 91.5
A 12 194 6970 71.31 455 447 91.5
B 6 159 1089087 12680.54 445 433 85.9
B 12 1 424832 4943.36 445 433 85.9
B 4 80 58345 674.55 445 433 85.9
C 14 238 109320 1078.21 432 434 101.0
C 14 254 52768 518.22 432 434 101.0
C 3 233 14531 139.59 432 434 101.0
D 8 195 410286 3857.77 434 423 106.2
D 13 249 294112 2764.3 434 423 106.2
D 12 218 115801 1085.98 434 423 106.2

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