ASTROSAT CZTI

Data Quality Report

Orbit 24298

Creation date: 2024-06-27T19:04:30.233941
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/AS1A07_145T01_9000003594_24298cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24298cztM0_level2_quad_clean.evt
Size (bytes)537,589,44089,196,480
Size512.7 MB 85.1 MB
Events in quadrant A3,318,058560,094
Events in quadrant B3,393,565573,954
Events in quadrant C3,788,917555,045
Events in quadrant D5,318,457537,403

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142782
B0144802
C0156033
D0205392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6806560.822803%
B6807761.116498%
C68061301.910079%
D68064035.921246%

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 8646 6806 0 0 0.00% 0.00%
B 8647 6807 3 3 0.03% 0.04%
C 8646 6806 15 15 0.17% 0.22%
D 8646 6806 229 229 2.65% 3.36%

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 13 254 10907 58.23 859 841 172.9
A 3 137 7717 39.78 859 841 172.9
A 0 226 7228 36.95 859 841 172.9
B 12 111 19523 113.58 856 836 164.5
B 11 111 17841 103.36 856 836 164.5
B 5 32 15213 87.38 856 836 164.5
C 7 247 329673 1693.27 829 835 194.2
C 14 238 131325 671.93 829 835 194.2
C 2 16 90965 464.1 829 835 194.2
D 1 52 1150053 5680.41 829 804 202.3
D 8 195 780919 3855.88 829 804 202.3
D 12 233 166582 819.39 829 804 202.3

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