ASTROSAT CZTI

Data Quality Report

Orbit 44428

Creation date: 2024-06-27T23:03:29.328655
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_072T03_9000006000_44428cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44428cztM0_level2_quad_clean.evt
Size (bytes)410,100,480109,008,000
Size391.1 MB 104.0 MB
Events in quadrant A4,523,364732,053
Events in quadrant B3,128,672754,505
Events in quadrant C2,964,074712,549
Events in quadrant D4,053,244642,951

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186831
B0138751
C0136302
D0168391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6575480.730038%
B6575460.699620%
C6575210.319392%
D65751832.783270%

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 7700 6576 8 8 0.10% 0.12%
B 7700 6576 13 13 0.17% 0.20%
C 7700 6576 5 5 0.06% 0.08%
D 7700 6576 163 163 2.12% 2.48%

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 1667948 11086.04 725 710 150.4
A 8 4 31123 202.23 725 710 150.4
A 10 248 15815 100.44 725 710 150.4
B 0 229 64873 450.22 725 705 142.5
B 4 170 54222 375.49 725 705 142.5
B 0 168 49856 344.86 725 705 142.5
C 12 16 76269 455.57 706 710 165.9
C 3 233 48997 291.14 706 710 165.9
C 14 254 44153 261.93 706 710 165.9
D 1 52 469470 2678.66 697 677 175.0
D 2 249 304692 1737.12 697 677 175.0
D 13 249 140111 796.72 697 677 175.0

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