ASTROSAT CZTI

Data Quality Report

Orbit 29287

Creation date: 2024-06-27T20:02:22.695368
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_021T10_9000004210_29287cztM0_level2.evt modeM0/AS1A10_021T10_9000004210_29287cztM0_level2_quad_clean.evt
Size (bytes)288,236,16023,852,160
Size274.9 MB 22.7 MB
Events in quadrant A1,200,802139,037
Events in quadrant B1,291,340141,233
Events in quadrant C2,645,315128,170
Events in quadrant D3,410,807123,061

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053960
B055880
C097680
D0119870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A265630.112952%
B265790.338728%
C2657632.371095%
D265737914.264208%

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 2656 2656 0 0 0.00% 0.00%
B 2657 2657 2 2 0.08% 0.08%
C 2657 2657 0 0 0.00% 0.00%
D 2657 2657 361 361 13.59% 13.59%

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 13 254 5759 85.03 310 304 64.2
A 3 137 2989 41.85 310 304 64.2
A 0 226 2848 39.65 310 304 64.2
B 0 244 19160 315.47 308 301 59.8
B 10 245 14771 242.05 308 301 59.8
B 10 247 13532 221.32 308 301 59.8
C 3 233 1469045 21465.73 288 287 68.4
C 14 238 47506 690.1 288 287 68.4
C 2 114 6749 94.44 288 287 68.4
D 1 52 976345 14040.37 284 276 69.5
D 8 195 707544 10173.77 284 276 69.5
D 12 79 293420 4216.76 284 276 69.5

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