ASTROSAT CZTI

Data Quality Report

Orbit 26193

Creation date: 2024-06-27T19:25:56.020569
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_012T04_9000003784_26193cztM0_level2.evt modeM0/AS1A09_012T04_9000003784_26193cztM0_level2_quad_clean.evt
Size (bytes)163,604,16037,615,680
Size156.0 MB 35.9 MB
Events in quadrant A1,376,983246,096
Events in quadrant B947,266252,001
Events in quadrant C979,119249,438
Events in quadrant D1,511,075243,724

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054620
B042110
C042790
D058870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2032532.608268%
B203340.196754%
C203330.147565%
D2033472.311854%

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 2032 2032 40 40 1.97% 1.97%
B 2033 2033 0 0 0.00% 0.00%
C 2033 2033 0 0 0.00% 0.00%
D 2033 2033 48 48 2.36% 2.36%

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 0 13 501005 10428.32 227 221 48.0
A 13 254 3101 59.96 227 221 48.0
A 3 137 2100 39.12 227 221 48.0
B 0 190 44322 979.89 226 221 45.0
B 5 172 18436 404.72 226 221 45.0
B 12 111 4958 105.25 226 221 45.0
C 3 233 99691 1934.54 215 216 51.4
C 14 238 34997 676.4 215 216 51.4
C 2 16 5566 104.04 215 216 51.4
D 1 52 611305 11325.31 217 211 54.0
D 12 233 48020 886.04 217 211 54.0
D 2 234 10118 183.6 217 211 54.0

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