ASTROSAT CZTI

Data Quality Report

Orbit 33707

Creation date: 2024-06-27T20:51:45.134769
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/AS1T04_090T01_9000004812_33707cztM0_level2.evt modeM0/AS1T04_090T01_9000004812_33707cztM0_level2_quad_clean.evt
Size (bytes)439,534,08046,923,840
Size419.2 MB 44.8 MB
Events in quadrant A2,873,974296,745
Events in quadrant B4,428,618231,981
Events in quadrant C2,419,809300,103
Events in quadrant D3,289,220280,758

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114580
B0159850
C097340
D0128650

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44131844.169499%
B441393121.096760%
C4413410.929073%
D44131844.169499%

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 4413 4413 156 156 3.54% 3.54%
B 4413 4413 887 887 20.10% 20.10%
C 4412 4412 34 34 0.77% 0.77%
D 4412 4412 175 175 3.97% 3.97%

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 15 237 908507 8900.67 507 497 102.0
A 13 254 8005 73.6 507 497 102.0
A 13 6 5101 45.13 507 497 102.0
B 5 200 1923012 22364.55 445 433 86.0
B 5 172 598793 6960.47 445 433 86.0
B 0 213 54871 633.25 445 433 86.0
C 15 214 200789 1727.11 497 502 116.0
C 14 254 188911 1624.68 497 502 116.0
C 14 67 26339 222.8 497 502 116.0
D 8 195 615442 5037.56 490 476 122.1
D 1 52 190177 1553.95 490 476 122.1
D 13 249 165388 1350.89 490 476 122.1

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