ASTROSAT CZTI

Data Quality Report

Orbit 44714

Creation date: 2024-06-27T23:05:33.132541
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/AS1A13_077T01_9000006014_44714cztM0_level2.fits modeM0/AS1A13_077T01_9000006014_44714cztM0_level2_quad_clean.evt
Size (bytes)1,139,855,040206,167,680
Size1.1 GB 196.6 MB
Events in quadrant A12,762,6961,338,861
Events in quadrant B7,665,9351,442,437
Events in quadrant C6,301,7841,394,373
Events in quadrant D14,401,3581,118,121

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0488784
B0319133
C0287202
D0523883

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02760
B02760
C02760
D02760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1373113239.635132%
B137315744.180322%
C137323172.308477%
D13731243817.755444%

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 14156 13734 723 723 5.11% 5.26%
B 14157 13735 111 111 0.78% 0.81%
C 14157 13735 0 0 0.00% 0.00%
D 14157 13735 1842 1842 13.01% 13.41%

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 3769855 11663.49 1547 1514 323.1
A 15 223 2828514 8749.92 1547 1514 323.1
A 13 248 132533 405.52 1547 1514 323.1
B 5 255 447596 1418.21 1570 1519 314.5
B 0 189 322713 1021.17 1570 1519 314.5
B 4 171 141060 443.64 1570 1519 314.5
C 14 254 72574 192.01 1562 1574 369.8
C 3 233 51510 135.05 1562 1574 369.8
C 0 207 29609 75.82 1562 1574 369.8
D 13 249 3090588 8245.93 1479 1436 374.6
D 11 241 2501524 6673.53 1479 1436 374.6
D 1 52 882910 2352.93 1479 1436 374.6

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