ASTROSAT CZTI

Data Quality Report

Orbit 26417

Creation date: 2024-06-27T19:28:45.974931
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_127T03_9000003820_26417cztM0_level2.evt modeM0/AS1A09_127T03_9000003820_26417cztM0_level2_quad_clean.evt
Size (bytes)392,535,36061,793,280
Size374.4 MB 58.9 MB
Events in quadrant A2,298,615397,533
Events in quadrant B2,547,299408,238
Events in quadrant C2,658,039384,633
Events in quadrant D4,066,892352,826

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A097150
B0103000
C0107850
D0152470

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A466890.192802%
B4668701.499572%
C46671192.549818%
D46674259.106492%

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 6058 4669 0 0 0.00% 0.00%
B 6058 4669 23 23 0.38% 0.49%
C 6057 4668 30 30 0.50% 0.64%
D 6057 4668 306 306 5.05% 6.56%

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 12 189 8566 67.12 594 582 118.9
A 13 254 8155 63.67 594 582 118.9
A 3 137 5193 38.77 594 582 118.9
B 5 172 93756 840.15 597 584 110.9
B 0 244 73470 657.23 597 584 110.9
B 0 189 22372 196.47 597 584 110.9
C 3 233 233691 1737.41 575 579 134.2
C 14 238 94227 697.97 575 579 134.2
C 2 16 74900 553.92 575 579 134.2
D 1 52 1268256 9563.73 553 540 132.6
D 7 80 512304 3860.78 553 540 132.6
D 12 233 109238 820.02 553 540 132.6

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