ASTROSAT CZTI

Data Quality Report

Orbit 04572

Creation date: 2024-06-27T14:43:56.545397
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/AS1G05_233T10_9000000570_04572cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04572cztM0_level2_quad_clean.evt
Size (bytes)547,652,16071,873,280
Size522.3 MB 68.5 MB
Events in quadrant A2,982,844445,601
Events in quadrant B3,786,254442,859
Events in quadrant C3,035,224440,751
Events in quadrant D6,337,562390,973

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133513
B0156312
C0135082
D0233842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6532150.229639%
B65321161.775873%
C6532180.275566%
D6532128019.595836%

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 7827 6533 0 0 0.00% 0.00%
B 7827 6533 62 62 0.79% 0.95%
C 7827 6533 7 7 0.09% 0.11%
D 7827 6533 1240 1240 15.84% 18.98%

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 0 50 13486 81.48 767 749 156.3
A 15 174 8195 47.63 767 749 156.3
A 12 194 7752 44.8 767 749 156.3
B 14 167 314396 2148.04 778 761 146.0
B 10 16 212618 1450.98 778 761 146.0
B 15 204 70028 474.4 778 761 146.0
C 14 48 56752 321.96 751 757 173.9
C 9 247 25255 140.86 751 757 173.9
C 1 3 7744 40.17 751 757 173.9
D 13 235 3255495 20102.56 672 653 161.9
D 2 136 135957 835.66 672 653 161.9
D 2 63 102235 627.39 672 653 161.9

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