ASTROSAT CZTI

Data Quality Report

Orbit 47965

Creation date: 2024-08-11T01:16:01.415773
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_062T02_9000006384_47965cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47965cztM0_level2_quad_clean.evt
Size (bytes)497,090,880105,298,560
Size474.1 MB 100.4 MB
Events in quadrant A8,283,525644,483
Events in quadrant B3,284,740735,186
Events in quadrant C2,970,135703,103
Events in quadrant D3,346,648641,974

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292032
B0143452
C0137162
D0147212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A664291213.730804%
B66421051.580849%
C6642600.903342%
D66421021.535682%

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 7647 6642 485 485 6.34% 7.30%
B 7647 6642 3 3 0.04% 0.05%
C 7647 6642 9 9 0.12% 0.14%
D 7647 6642 40 40 0.52% 0.60%

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 4196970 27648.81 730 714 151.8
A 0 31 1252671 8249.05 730 714 151.8
A 7 3 12970 80.75 730 714 151.8
B 0 200 170973 1144.97 754 732 148.7
B 7 221 42614 281.68 754 732 148.7
B 0 198 34106 224.46 754 732 148.7
C 1 3 26213 145.31 740 743 175.3
C 12 2 23135 127.75 740 743 175.3
C 14 254 19433 106.63 740 743 175.3
D 2 249 113134 614.11 740 716 183.1
D 11 224 112391 610.05 740 716 183.1
D 5 235 59469 320.95 740 716 183.1

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