ASTROSAT CZTI

Data Quality Report

Orbit 47017

Creation date: 2024-06-27T23:30:48.085941
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/AS1C09_005T01_9000006296_47017cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47017cztM0_level2_quad_clean.evt
Size (bytes)855,411,840104,855,040
Size815.8 MB 100.0 MB
Events in quadrant A7,308,151813,722
Events in quadrant B16,131,174259,870
Events in quadrant C3,505,744811,711
Events in quadrant D4,110,973744,057

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267970
B0532680
C0164430
D0181620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78442863.646099%
B7844587174.847017%
C7845720.917782%
D78451882.396431%

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 7904 7845 3 3 0.04% 0.04%
B 7904 7845 4942 4942 62.53% 63.00%
C 7905 7846 17 17 0.22% 0.22%
D 7905 7846 78 78 0.99% 0.99%

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 10 83 3860718 21414.7 860 838 180.2
A 9 191 58778 321.45 860 838 180.2
A 13 248 19776 105.07 860 838 180.2
B 3 112 13330097 113902.44 599 580 117.0
B 15 36 129187 1098.96 599 580 117.0
B 4 171 92738 787.5 599 580 117.0
C 14 254 167071 839.22 843 847 198.1
C 12 249 23157 112.64 843 847 198.1
C 3 233 16454 78.8 843 847 198.1
D 12 233 321206 1527.46 839 811 209.8
D 13 249 156969 744.47 839 811 209.8
D 2 249 140086 663.98 839 811 209.8

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