ASTROSAT CZTI

Data Quality Report

Orbit 45608

Creation date: 2024-06-27T23:14:11.395444
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_071T08_9000006114_45608cztM0_level2.fits modeM0/AS1A13_071T08_9000006114_45608cztM0_level2_quad_clean.evt
Size (bytes)312,079,68055,595,520
Size297.6 MB 53.0 MB
Events in quadrant A3,229,450364,853
Events in quadrant B2,651,491352,886
Events in quadrant C1,948,475383,631
Events in quadrant D3,445,604330,639

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118671
B0102391
C083071
D0127061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35533279.203490%
B355352314.719955%
C35531333.743316%
D35533409.569378%

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 3748 3554 20 20 0.53% 0.56%
B 3748 3554 135 135 3.60% 3.80%
C 3748 3554 54 54 1.44% 1.52%
D 3748 3554 145 145 3.87% 4.08%

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 1433100 15509.6 432 422 92.4
A 10 248 89256 961.68 432 422 92.4
A 15 174 15014 157.97 432 422 92.4
B 12 18 450465 5427.83 409 396 82.9
B 15 201 299115 3602.55 409 396 82.9
B 5 172 200669 2415.29 409 396 82.9
C 14 254 152540 1522.86 421 423 99.9
C 12 2 123696 1234.1 421 423 99.9
C 2 14 15976 155.7 421 423 99.9
D 11 241 912975 8555.44 415 399 106.7
D 8 48 427965 4008.45 415 399 106.7
D 12 233 150885 1410.81 415 399 106.7

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