ASTROSAT CZTI

Data Quality Report

Orbit 10038

Creation date: 2024-06-27T15:54:05.486936
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/AS1A03_052T01_9000001436_10038cztM0_level2.evt modeM0/AS1A03_052T01_9000001436_10038cztM0_level2_quad_clean.evt
Size (bytes)9,740,1602,508,480
Size9.3 MB 2.4 MB
Events in quadrant A74,09413,885
Events in quadrant B67,43914,980
Events in quadrant C67,95514,577
Events in quadrant D71,53412,865

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05044
B05250
C04947
D04947

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055
B066
C044
D033

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052774964
B052654973
C052224922
D055605261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15600.000000%
B14600.000000%
C15000.000000%
D14800.000000%

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 3166 219 0 0 0.00% 0.00%
B 3265 201 0 0 0.00% 0.00%
C 3305 203 0 0 0.00% 0.00%
D 3306 204 0 0 0.00% 0.00%

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 2266 388.19 18 18 5.8
A 0 8 284 45.93 18 18 5.8
A 0 226 166 25.56 18 18 5.8
B 12 111 424 77.15 17 16 5.3
B 4 239 371 67.13 17 16 5.3
B 11 111 298 53.33 17 16 5.3
C 14 67 1545 263.07 16 16 5.8
C 13 61 122 18.24 16 16 5.8
C -1 -1 -1 -1.0 16 16 5.8
D 8 195 5263 899.16 16 16 5.8
D 1 52 1352 228.94 16 16 5.8
D 2 152 839 141.03 16 16 5.8

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