ASTROSAT CZTI

Data Quality Report

Orbit 13995

Creation date: 2024-06-27T16:49:00.762704
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/AS1A04_075T05_9000002066_13995cztM0_level2.evt modeM0/AS1A04_075T05_9000002066_13995cztM0_level2_quad_clean.evt
Size (bytes)178,865,28041,760,000
Size170.6 MB 39.8 MB
Events in quadrant A989,316287,192
Events in quadrant B1,081,804291,483
Events in quadrant C1,033,077283,813
Events in quadrant D2,170,452252,099

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042560
B044940
C043510
D078120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A206710.048379%
B206790.435414%
C206700.000000%
D206725712.433478%

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 2068 2068 0 0 0.00% 0.00%
B 2068 2068 9 9 0.44% 0.44%
C 2068 2068 0 0 0.00% 0.00%
D 2068 2068 301 301 14.56% 14.56%

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 8 15 23035 447.23 246 241 51.0
A 1 162 6857 129.81 246 241 51.0
A 2 79 3949 72.75 246 241 51.0
B 3 64 24517 514.11 246 240 47.2
B 0 190 21764 455.81 246 240 47.2
B 10 245 18597 388.74 246 240 47.2
C 3 233 83069 1465.14 240 242 56.5
C 0 207 11924 206.64 240 242 56.5
C 13 61 1787 27.33 240 242 56.5
D 1 52 1040510 18105.0 230 224 57.5
D 8 195 96895 1682.45 230 224 57.5
D 15 0 57698 1000.27 230 224 57.5

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