ASTROSAT CZTI

Data Quality Report

Orbit 33530

Creation date: 2024-06-27T20:49:49.234674
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/AS1A11_037T01_9000004806_33530cztM0_level2.evt modeM0/AS1A11_037T01_9000004806_33530cztM0_level2_quad_clean.evt
Size (bytes)327,375,36053,904,960
Size312.2 MB 51.4 MB
Events in quadrant A1,559,208353,820
Events in quadrant B2,478,824352,126
Events in quadrant C2,335,568349,116
Events in quadrant D3,304,210330,513

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070511
B096271
C090071
D0122251

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A347650.143843%
B34761524.372842%
C34761032.963176%
D34762005.753740%

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 3476 3476 0 0 0.00% 0.00%
B 3476 3476 114 114 3.28% 3.28%
C 3476 3476 93 93 2.68% 2.68%
D 3476 3476 191 191 5.49% 5.49%

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 12 227 28726 354.05 392 383 80.1
A 13 254 6852 80.81 392 383 80.1
A 13 6 6633 78.07 392 383 80.1
B 5 172 396155 5279.58 385 374 75.0
B 5 255 209211 2785.81 385 374 75.0
B 4 170 87649 1164.22 385 374 75.0
C 1 23 310808 3510.53 376 378 88.4
C 15 214 166799 1881.99 376 378 88.4
C 0 10 128369 1447.4 376 378 88.4
D 8 195 987348 10565.55 374 365 93.4
D 12 233 218588 2336.06 374 365 93.4
D 12 235 199989 2136.96 374 365 93.4

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