ASTROSAT CZTI

Data Quality Report

Orbit 04713

Creation date: 2024-06-27T14:45:53.617617
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/AS1G05_235T01_9000000590_04713cztM0_level2.evt modeM0/AS1G05_235T01_9000000590_04713cztM0_level2_quad_clean.evt
Size (bytes)3,243,985,920403,770,240
Size3.0 GB 385.1 MB
Events in quadrant A17,950,9282,441,042
Events in quadrant B19,845,8112,433,979
Events in quadrant C17,898,3152,424,741
Events in quadrant D39,866,0932,193,264

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08080
B08080
C08080
D08080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0823138
B0859737
C0827717
D01459117

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A398079172.303615%
B398079922.492024%
C398078582.155400%
D39807600715.090311%

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 42927 39813 0 0 0.00% 0.00%
B 42927 39813 54 54 0.13% 0.14%
C 42927 39815 111 111 0.26% 0.28%
D 42927 39814 4960 4960 11.55% 12.46%

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 8 15 220031 233.53 4551 4436 923.2
A 13 251 83248 85.37 4551 4436 923.2
A 13 14 70774 71.86 4551 4436 923.2
B 15 204 1129206 1264.98 4607 4490 889.1
B 4 80 328339 364.24 4607 4490 889.1
B 10 16 181202 198.75 4607 4490 889.1
C 9 247 482363 463.59 4451 4452 1030.9
C 13 61 36726 31.31 4451 4452 1030.9
C 8 128 22721 17.72 4451 4452 1030.9
D 2 63 16016946 15626.74 4252 4113 1024.7
D 13 235 4647861 4531.78 4252 4113 1024.7
D 2 136 974840 947.32 4252 4113 1024.7

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