ASTROSAT CZTI

Data Quality Report

Orbit 20240603_A13_070T06_9000006288_level2

Creation date: 2024-06-04T12:26:22.166130
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_070T06_9000006288cztM0_level2.fits modeM0/AS1A13_070T06_9000006288cztM0_level2_quad_clean.evt
Size (bytes)200,782,080193,403,520
Size191.5 MB 184.4 MB
Events in quadrant A1,162,8741,105,408
Events in quadrant B1,116,2721,078,587
Events in quadrant C1,195,0801,105,707
Events in quadrant D1,028,700989,828

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04620
B04620
C04620
D04620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0768560
B0662210
C0491320
D0532490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A229117013.059666%
B2291114946.520885%
C229111840.803108%
D229116172.693030%

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 23631 22911 0 0 0.00% 0.00%
B 23630 22910 0 0 0.00% 0.00%
C 23631 22890 0 0 0.00% 0.00%
D 23631 22900 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 7 110 942 8.06 303 283 81.8
A 14 95 921 7.8 303 283 81.8
A 0 29 908 7.64 303 283 81.8
B 2 9 1102 13.59 294 279 60.6
B 2 8 898 10.22 294 279 60.6
B 3 17 843 9.31 294 279 60.6
C 3 202 942 7.62 315 291 85.4
C 1 81 941 7.61 315 291 85.4
C 1 80 896 7.08 315 291 85.4
D 15 47 767 5.94 294 266 84.4
D 4 12 745 5.67 294 266 84.4
D 10 189 718 5.35 294 266 84.4

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