ASTROSAT CZTI

Data Quality Report

Orbit 04416

Creation date: 2024-06-27T14:41:40.724844
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_230T04_9000000550_04416cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04416cztM0_level2_quad_clean.evt
Size (bytes)640,828,80092,698,560
Size611.1 MB 88.4 MB
Events in quadrant A2,629,409630,899
Events in quadrant B4,940,859602,917
Events in quadrant C2,594,589635,039
Events in quadrant D8,848,769530,548

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118992
B0185691
C0119541
D0302711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5818931.598487%
B581861410.553455%
C5818761.306291%
D5818227639.119972%

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 6868 5819 0 0 0.00% 0.00%
B 6868 5819 490 490 7.13% 8.42%
C 6868 5819 0 0 0.00% 0.00%
D 6868 5819 2335 2335 34.00% 40.13%

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 8 15 10619 73.22 672 658 136.0
A 0 13 10038 68.95 672 658 136.0
A 13 251 7897 53.21 672 658 136.0
B 14 167 2306394 18535.44 658 642 124.4
B 0 172 40122 317.37 658 642 124.4
B 7 252 23298 182.13 658 642 124.4
C 9 16 34871 228.02 653 654 150.1
C 9 247 8538 52.54 653 654 150.1
C 13 61 5414 31.72 653 654 150.1
D 13 114 6323778 44531.39 597 579 142.0
D 13 239 63000 439.6 597 579 142.0
D 12 233 58286 406.4 597 579 142.0

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