ASTROSAT CZTI

Data Quality Report

Orbit 32433

Creation date: 2024-06-27T20:40:07.682961
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/AS1A09_108T02_9000004706_32433cztM0_level2.evt modeM0/AS1A09_108T02_9000004706_32433cztM0_level2_quad_clean.evt
Size (bytes)592,485,12073,560,960
Size565.0 MB 70.2 MB
Events in quadrant A3,271,254445,142
Events in quadrant B6,178,590454,523
Events in quadrant C3,578,753430,857
Events in quadrant D4,449,203417,326

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140203
B0230482
C0148712
D0177042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6870640.931587%
B68702343.406114%
C68702393.478894%
D68703234.701601%

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 7735 6871 0 0 0.00% 0.00%
B 7735 6871 34 34 0.44% 0.49%
C 7735 6871 7 7 0.09% 0.10%
D 7735 6871 254 254 3.28% 3.70%

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 13 6 10828 58.87 845 827 169.9
A 13 254 10293 55.72 845 827 169.9
A 3 137 9057 48.45 845 827 169.9
B 6 159 1862258 11451.56 835 813 162.5
B 4 80 1026730 6311.42 835 813 162.5
B 12 111 20663 122.12 835 813 162.5
C 14 238 171158 907.22 800 804 187.8
C 14 254 62077 326.31 800 804 187.8
C 0 10 56536 296.8 800 804 187.8
D 14 52 768394 3971.3 806 784 193.3
D 1 47 201285 1037.31 806 784 193.3
D 2 250 148014 761.71 806 784 193.3

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