ASTROSAT CZTI

Data Quality Report

Orbit 13698

Creation date: 2024-06-27T16:44:48.542957
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/AS1T02_040T01_9000002030_13698cztM0_level2.evt modeM0/AS1T02_040T01_9000002030_13698cztM0_level2_quad_clean.evt
Size (bytes)318,723,84053,979,840
Size304.0 MB 51.5 MB
Events in quadrant A2,039,962345,314
Events in quadrant B2,198,341364,845
Events in quadrant C2,020,858325,488
Events in quadrant D3,112,613308,392

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086013
B090382
C085182
D0120282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4112541.313230%
B4112761.848249%
C4112350.851167%
D41122205.350195%

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 4428 4115 0 0 0.00% 0.00%
B 4428 4115 4 4 0.09% 0.10%
C 4428 4115 0 0 0.00% 0.00%
D 4428 4115 124 124 2.80% 3.01%

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 1 162 22735 203.74 520 510 109.1
A 1 178 7417 63.32 520 510 109.1
A 1 161 6691 56.66 520 510 109.1
B 0 214 99101 973.97 523 511 101.2
B 4 80 21359 205.96 523 511 101.2
B 0 219 15305 146.15 523 511 101.2
C 3 233 68611 581.99 500 503 117.0
C 13 61 3666 27.03 500 503 117.0
C 8 128 2039 13.13 500 503 117.0
D 13 122 396167 3304.97 491 477 119.7
D 5 222 289461 2413.72 491 477 119.7
D 1 52 270108 2252.07 491 477 119.7

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