ASTROSAT CZTI

Data Quality Report

Orbit 48554

Creation date: 2024-09-19T23:11:40.888305
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_9000006436_48554cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48554cztM0_level2_quad_clean.evt
Size (bytes)485,553,600109,935,360
Size463.1 MB 104.8 MB
Events in quadrant A6,999,083733,626
Events in quadrant B4,064,807722,723
Events in quadrant C2,923,502724,203
Events in quadrant D3,435,648654,115

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266810
B0174370
C0144020
D0156622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70921231.734349%
B70924266.006768%
C709340.056394%
D7092680.958827%

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 7092 7092 3 3 0.04% 0.04%
B 7092 7092 314 314 4.43% 4.43%
C 7093 7093 1 1 0.01% 0.01%
D 7093 7093 56 56 0.79% 0.79%

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 10 83 3928113 24292.39 761 745 161.7
A 12 189 55215 336.92 761 745 161.7
A 13 248 41035 249.21 761 745 161.7
B 12 16 1050402 7201.14 738 714 145.8
B 5 255 81975 557.47 738 714 145.8
B 12 111 19177 126.66 738 714 145.8
C 12 250 7024 35.5 747 749 176.8
C 14 254 5465 26.68 747 749 176.8
C 13 61 4942 23.72 747 749 176.8
D 2 249 399034 2143.55 743 719 185.8
D 5 32 52767 280.1 743 719 185.8
D 2 234 39261 207.42 743 719 185.8

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