ASTROSAT CZTI

Data Quality Report

Orbit 22267

Creation date: 2024-06-27T18:38:48.035349
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_018T07_9000003294_22267cztM0_level2.evt modeM0/AS1A07_018T07_9000003294_22267cztM0_level2_quad_clean.evt
Size (bytes)483,505,92095,428,800
Size461.1 MB 91.0 MB
Events in quadrant A3,331,558613,868
Events in quadrant B3,406,403623,258
Events in quadrant C3,338,808588,128
Events in quadrant D4,089,553576,031

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145641
B0146551
C0145411
D0167761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70121442.053622%
B70131622.309996%
C70131722.452588%
D70132052.923143%

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 7177 7014 0 0 0.00% 0.00%
B 7178 7015 2 2 0.03% 0.03%
C 7178 7015 0 0 0.00% 0.00%
D 7178 7015 96 96 1.34% 1.37%

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 8771 45.14 864 844 175.6
A 3 137 7712 39.11 864 844 175.6
A 0 226 7356 37.08 864 844 175.6
B 3 64 24753 143.19 856 833 167.0
B 12 111 20901 120.13 856 833 167.0
B 11 111 18475 105.61 856 833 167.0
C 14 238 128657 660.74 821 827 193.5
C 10 22 7475 34.36 821 827 193.5
C 13 61 5628 24.82 821 827 193.5
D 1 52 708441 3424.52 838 813 206.6
D 12 227 126482 608.17 838 813 206.6
D 13 104 47619 226.51 838 813 206.6

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