ASTROSAT CZTI

Data Quality Report

Orbit 27360

Creation date: 2024-06-27T19:39:20.879110
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/AS1A09_038T15_9000003932_27360cztM0_level2.evt modeM0/AS1A09_038T15_9000003932_27360cztM0_level2_quad_clean.evt
Size (bytes)137,200,32030,286,080
Size130.8 MB 28.9 MB
Events in quadrant A775,033206,296
Events in quadrant B875,806209,507
Events in quadrant C1,376,431187,865
Events in quadrant D1,020,064198,550

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032190
B035280
C051090
D040170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A155170.451322%
B1551150.967118%
C155028218.193548%
D1550211.354839%

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 1551 1551 0 0 0.00% 0.00%
B 1551 1551 0 0 0.00% 0.00%
C 1549 1549 144 144 9.30% 9.30%
D 1550 1550 12 12 0.77% 0.77%

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 2667 58.69 200 196 42.1
A 0 226 1844 39.14 200 196 42.1
A 3 137 1841 39.07 200 196 42.1
B 10 245 49689 1247.5 197 193 39.7
B 15 32 44934 1127.66 197 193 39.7
B 12 111 4212 101.3 197 193 39.7
C 2 16 652711 15522.54 175 176 42.0
C 14 238 28669 677.79 175 176 42.0
C 0 207 3130 70.27 175 176 42.0
D 1 52 126915 2493.49 190 186 50.8
D 12 227 116111 2280.91 190 186 50.8
D 2 250 30695 600.29 190 186 50.8

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