ASTROSAT CZTI

Data Quality Report

Orbit 20240229_A13_093T11_9000006108_level2

Creation date: 2024-03-02T11:33:41.577160
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/AS1A13_093T11_9000006108cztM0_level2.fits modeM0/AS1A13_093T11_9000006108cztM0_level2_quad_clean.evt
Size (bytes)506,646,720538,148,160
Size483.2 MB 513.2 MB
Events in quadrant A2,957,0603,204,014
Events in quadrant B2,906,3883,269,523
Events in quadrant C2,994,6203,097,308
Events in quadrant D2,548,0002,792,346

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01860180
B01258570
C01361790
D01540640

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011660
B011660
C011640
D011660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5734719943.477078%
B5735013952.432432%
C5734518573.238295%
D5734231525.496844%

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 63273 57358 0 0 0.00% 0.00%
B 63273 57319 0 0 0.00% 0.00%
C 63273 57356 0 0 0.00% 0.00%
D 63273 57344 0 0 0.00% 0.00%

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 7 110 2355 8.2 770 719 199.5
A 15 236 2337 8.11 770 719 199.5
A 0 29 2288 7.87 770 719 199.5
B 2 9 2773 13.46 765 727 152.0
B 3 17 2157 9.41 765 727 152.0
B 2 8 2146 9.33 765 727 152.0
C 3 202 2376 8.07 790 735 203.3
C 3 203 2331 7.85 790 735 203.3
C 1 81 2254 7.47 790 735 203.3
D 8 176 2265 7.92 730 661 202.6
D 4 250 1964 6.43 730 661 202.6
D 6 38 1856 5.9 730 661 202.6

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