ASTROSAT CZTI

Data Quality Report

Orbit 24593

Creation date: 2024-06-27T19:07:39.638939
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/AS1T03_188T01_9000003612_24593cztM0_level2.evt modeM0/AS1T03_188T01_9000003612_24593cztM0_level2_quad_clean.evt
Size (bytes)520,974,72054,377,280
Size496.8 MB 51.9 MB
Events in quadrant A1,967,946383,409
Events in quadrant B2,061,486388,254
Events in quadrant C8,136,995269,090
Events in quadrant D3,358,316341,517

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082170
B083960
C0267040
D0124040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A372420.053706%
B372480.214823%
C3724305682.062299%
D37241614.323308%

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 3724 3724 0 0 0.00% 0.00%
B 3724 3724 0 0 0.00% 0.00%
C 3724 3724 2752 2752 73.90% 73.90%
D 3724 3724 160 160 4.30% 4.30%

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 6715 61.23 510 502 101.5
A 0 226 4399 38.41 510 502 101.5
A 3 137 4009 34.56 510 502 101.5
B 0 190 41925 440.4 509 499 94.1
B 3 64 24202 251.99 509 499 94.1
B 7 202 10619 107.59 509 499 94.1
C 7 247 6617923 78768.59 367 370 84.0
C 14 238 57925 685.08 367 370 84.0
C 7 226 19769 230.91 367 370 84.0
D 8 195 1209786 10666.53 473 463 113.4
D 1 52 355721 3133.46 473 463 113.4
D 2 234 16015 137.17 473 463 113.4

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