ASTROSAT CZTI

Data Quality Report

Orbit 13722

Creation date: 2024-06-27T16:44:56.645560
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/AS1G08_036T01_9000002034_13722cztM0_level2.evt modeM0/AS1G08_036T01_9000002034_13722cztM0_level2_quad_clean.evt
Size (bytes)391,639,68074,093,760
Size373.5 MB 70.7 MB
Events in quadrant A2,637,086478,738
Events in quadrant B3,233,386492,522
Events in quadrant C2,693,899461,089
Events in quadrant D2,937,603441,660

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109472
B0129251
C0109921
D0119321

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5276220.416983%
B5276671.269901%
C5276110.208491%
D5276150.284306%

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 6622 5278 0 0 0.00% 0.00%
B 6622 5278 6 6 0.09% 0.11%
C 6622 5278 0 0 0.00% 0.00%
D 6622 5278 4 4 0.06% 0.08%

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 1 162 7010 46.0 683 670 137.8
A 0 226 6163 39.86 683 670 137.8
A 12 194 5216 32.99 683 670 137.8
B 10 244 351299 2758.25 680 668 127.1
B 8 250 155147 1215.22 680 668 127.1
B 0 214 44918 348.09 680 668 127.1
C 3 233 85170 552.35 664 669 153.0
C 4 254 14831 92.57 664 669 153.0
C 13 61 4785 26.9 664 669 153.0
D 5 222 198033 1150.8 658 644 171.5
D 8 195 92162 533.56 658 644 171.5
D 1 52 72342 418.01 658 644 171.5

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