ASTROSAT CZTI

Data Quality Report

Orbit 48591

Creation date: 2024-09-22T09:22:23.402619
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_037T01_9000006436_48591cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48591cztM0_level2_quad_clean.evt
Size (bytes)452,753,280105,120,000
Size431.8 MB 100.3 MB
Events in quadrant A6,637,937686,922
Events in quadrant B3,910,831710,270
Events in quadrant C2,715,252708,596
Events in quadrant D2,999,236631,785

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240022
B0162652
C0129812
D0139362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63892533.959931%
B63893625.665988%
C6389120.187823%
D6389540.845203%

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 7579 6390 140 140 1.85% 2.19%
B 7579 6390 229 229 3.02% 3.58%
C 7579 6390 0 0 0.00% 0.00%
D 7579 6389 36 36 0.47% 0.56%

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 3916541 27477.0 685 672 142.5
A 13 248 49154 340.19 685 672 142.5
A 0 31 20595 139.8 685 672 142.5
B 12 16 1132544 8489.87 684 664 133.3
B 5 255 20436 148.3 684 664 133.3
B 12 111 16854 121.44 684 664 133.3
C 12 250 15105 88.77 690 696 162.3
C 3 233 8049 45.3 690 696 162.3
C 14 254 5839 31.69 690 696 162.3
D 13 171 143927 858.63 674 651 166.9
D 2 165 138189 824.24 674 651 166.9
D 2 249 122230 728.6 674 651 166.9

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