ASTROSAT CZTI

Data Quality Report

Orbit 23582

Creation date: 2024-06-27T18:56:25.404979
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_011T01_9000003482_23582cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23582cztM0_level2_quad_clean.evt
Size (bytes)474,972,48086,212,800
Size453.0 MB 82.2 MB
Events in quadrant A3,171,302554,407
Events in quadrant B3,240,589565,175
Events in quadrant C3,063,157533,826
Events in quadrant D4,491,954528,161

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134271
B0135261
C0130212
D0175121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61521472.389467%
B61531211.966520%
C61521432.324447%
D61522534.112484%

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 6922 6152 57 57 0.82% 0.93%
B 6923 6153 12 12 0.17% 0.20%
C 6922 6152 72 72 1.04% 1.17%
D 6922 6152 188 188 2.72% 3.06%

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 6 16 313124 2087.69 741 724 149.6
A 13 254 11195 69.97 741 724 149.6
A 3 137 6420 38.06 741 724 149.6
B 3 64 132031 945.37 733 715 138.9
B 0 189 119367 854.2 733 715 138.9
B 10 247 23583 164.63 733 715 138.9
C 0 10 223653 1389.09 692 697 160.5
C 14 238 112127 694.24 692 697 160.5
C 10 9 11716 68.65 692 697 160.5
D 1 52 913723 5259.0 710 688 173.6
D 7 223 463656 2666.65 710 688 173.6
D 7 38 196092 1125.51 710 688 173.6

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