ASTROSAT CZTI

Data Quality Report

Orbit 10409

Creation date: 2024-06-27T15:59:01.249191
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/AS1G07_057T02_9000001504_10409cztM0_level2.evt modeM0/AS1G07_057T02_9000001504_10409cztM0_level2_quad_clean.evt
Size (bytes)523,800,00077,973,120
Size499.5 MB 74.4 MB
Events in quadrant A3,531,894487,240
Events in quadrant B4,071,526479,091
Events in quadrant C3,021,949481,241
Events in quadrant D4,796,694459,625

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440111
B0162163
C0133715
D01863719

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65041432.198647%
B65073325.102198%
C65061011.552413%
D65032423.721359%

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 7348 6508 2 2 0.03% 0.03%
B 7348 6508 137 137 1.86% 2.11%
C 7348 6508 1 1 0.01% 0.02%
D 7348 6508 124 124 1.69% 1.91%

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 13 251 487115 3024.39 786 767 160.8
A 4 2 10497 60.51 786 767 160.8
A 0 226 7189 39.94 786 767 160.8
B 4 239 686116 4649.89 773 752 147.4
B 10 245 149868 1011.69 773 752 147.4
B 0 219 85807 577.06 773 752 147.4
C 14 234 30213 165.63 767 771 177.8
C 13 61 5636 27.37 767 771 177.8
C 3 202 1889 6.29 767 771 177.8
D 1 20 570765 3123.33 763 742 182.5
D 1 52 492955 2696.98 763 742 182.5
D 12 233 370495 2025.99 763 742 182.5

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