ASTROSAT CZTI

Data Quality Report

Orbit 47429

Creation date: 2024-07-05T21:33:24.942984
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_053T01_9000006326_47429cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47429cztM0_level2_quad_clean.evt
Size (bytes)493,634,88099,636,480
Size470.8 MB 95.0 MB
Events in quadrant A6,484,955656,116
Events in quadrant B3,292,874678,873
Events in quadrant C2,783,445661,431
Events in quadrant D5,238,915594,698

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234611
B0140341
C0127551
D0199255

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60963405.577428%
B60971772.903067%
C6097801.312121%
D60962824.625984%

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 7166 6097 94 94 1.31% 1.54%
B 7167 6098 60 60 0.84% 0.98%
C 7167 6098 31 31 0.43% 0.51%
D 7166 6097 216 216 3.01% 3.54%

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 3426805 24456.95 676 662 140.1
A 9 191 424453 3025.16 676 662 140.1
A 14 248 10926 73.27 676 662 140.1
B 5 32 153189 1152.11 677 655 132.4
B 0 198 118674 891.41 677 655 132.4
B 5 255 99817 748.98 677 655 132.4
C 0 207 178979 1147.65 667 671 155.4
C 13 61 4606 25.33 667 671 155.4
C 2 80 3309 16.98 667 671 155.4
D 6 112 1822473 11203.34 657 637 162.6
D 12 233 406752 2497.4 657 637 162.6
D 12 128 161486 989.14 657 637 162.6

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