ASTROSAT CZTI

Data Quality Report

Orbit 20240618_A13_037T01_9000006300_level2

Creation date: 2024-06-20T22:51:39.390653
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_037T01_9000006300cztM0_level2.fits modeM0/AS1A13_037T01_9000006300cztM0_level2_quad_clean.evt
Size (bytes)536,734,080533,211,840
Size511.9 MB 508.5 MB
Events in quadrant A3,127,6643,099,556
Events in quadrant B3,087,5003,173,462
Events in quadrant C3,162,2982,982,913
Events in quadrant D2,733,1002,749,230

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0690
C0690
D0690

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012240
B012240
C012240
D012240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02125280
B01361870
C01300250
D01377110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6039819443.218650%
B6039914592.415603%
C604017591.256602%
D6040010031.660596%

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 66951 60392 0 0 0.00% 0.00%
B 66950 60394 0 0 0.00% 0.00%
C 66951 60383 0 0 0.00% 0.00%
D 66951 60394 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 2579 8.54 815 759 213.2
A 15 236 2467 8.01 815 759 213.2
A 0 29 2392 7.66 815 759 213.2
B 2 9 2999 13.48 815 773 165.2
B 2 8 2443 10.11 815 773 165.2
B 3 17 2273 9.08 815 773 165.2
C 3 203 2370 7.34 835 771 217.8
C 3 202 2321 7.12 835 771 217.8
C 1 81 2298 7.01 835 771 217.8
D 3 31 2038 6.08 783 711 218.1
D 15 47 2005 5.93 783 711 218.1
D 3 14 1988 5.86 783 711 218.1

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