ASTROSAT CZTI

Data Quality Report

Orbit 26024

Creation date: 2024-06-27T19:23:58.689893
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_033T02_9000003762_26024cztM0_level2.evt modeM0/AS1A09_033T02_9000003762_26024cztM0_level2_quad_clean.evt
Size (bytes)132,543,36035,156,160
Size126.4 MB 33.5 MB
Events in quadrant A1,194,588239,878
Events in quadrant B903,991247,521
Events in quadrant C885,621228,986
Events in quadrant D920,532231,756

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046050
B036450
C035780
D037360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1572674.262087%
B157260.381679%
C157230.190840%
D157230.190840%

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 1572 1572 54 54 3.44% 3.44%
B 1572 1572 0 0 0.00% 0.00%
C 1572 1572 0 0 0.00% 0.00%
D 1572 1572 1 1 0.06% 0.06%

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 284544 5947.63 235 231 47.8
A 5 244 5737 115.18 235 231 47.8
A 0 226 2094 38.97 235 231 47.8
B 12 111 4751 100.5 231 227 45.0
B 14 111 4317 90.86 231 227 45.0
B 11 111 4213 88.55 231 227 45.0
C 14 238 36262 704.3 217 219 51.2
C 13 61 1666 28.28 217 219 51.2
C 3 233 1446 23.98 217 219 51.2
D 1 52 38064 699.22 224 219 54.1
D 7 223 19835 362.42 224 219 54.1
D 13 174 7378 132.27 224 219 54.1

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