ASTROSAT CZTI

Data Quality Report

Orbit 44407

Creation date: 2024-06-27T23:03:14.942364
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_008T08_9000005998_44407cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44407cztM0_level2_quad_clean.evt
Size (bytes)657,118,080114,603,840
Size626.7 MB 109.3 MB
Events in quadrant A5,223,414811,084
Events in quadrant B4,059,866816,374
Events in quadrant C6,551,365663,692
Events in quadrant D7,897,858647,013

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220000
B0173030
C0250270
D0287260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7636490.641697%
B76371882.461700%
C7637121515.909389%
D7637103813.591724%

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 7636 7636 0 0 0.00% 0.00%
B 7637 7637 90 90 1.18% 1.18%
C 7637 7637 1160 1160 15.19% 15.19%
D 7637 7637 1043 1043 13.66% 13.66%

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 1837148 10117.66 855 836 181.5
A 8 4 31317 167.94 855 836 181.5
A 13 248 18603 97.89 855 836 181.5
B 5 172 247624 1454.53 848 821 169.7
B 5 255 122115 714.84 848 821 169.7
B 0 190 71117 414.29 848 821 169.7
C 15 158 3210611 17709.04 769 774 181.3
C 14 254 153901 844.82 769 774 181.3
C 3 233 75236 410.82 769 774 181.3
D 4 221 1074871 5369.55 792 765 200.0
D 6 239 854527 4268.03 792 765 200.0
D 2 249 807482 4032.85 792 765 200.0

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