ASTROSAT CZTI

Data Quality Report

Orbit 40180

Creation date: 2024-06-27T22:13:10.183629
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/AS1A12_032T04_9000005528_40180cztM0_level2.fits modeM0/AS1A12_032T04_9000005528_40180cztM0_level2_quad_clean.evt
Size (bytes)2,188,987,200284,572,800
Size2.0 GB 271.4 MB
Events in quadrant A10,704,2282,177,736
Events in quadrant B10,254,6952,222,329
Events in quadrant C39,088,0551,057,879
Events in quadrant D19,428,6021,769,738

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04120
B04120
C04120
D04120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0437385
B0442254
C01299984
D0716374

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A201371470.730000%
B201372551.266326%
C201371128056.016288%
D20137254712.648359%

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 25926 20141 94 94 0.36% 0.47%
B 25926 20141 192 192 0.74% 0.95%
C 25926 20141 11327 11327 43.69% 56.24%
D 25926 20141 2699 2699 10.41% 13.40%

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 1577544 3527.84 2198 2156 446.6
A 13 248 477629 1064.75 2198 2156 446.6
A 6 10 50236 107.67 2198 2156 446.6
B 5 255 821025 1973.86 2181 2118 414.9
B 0 229 253287 605.41 2181 2118 414.9
B 5 32 162674 387.0 2181 2118 414.9
C 9 187 31983523 85337.58 1634 1646 374.8
C 15 214 650106 1730.29 1634 1646 374.8
C 14 254 26081 65.2 1634 1646 374.8
D 12 227 9786136 19826.39 2030 1978 493.5
D 13 249 777506 1571.51 2030 1978 493.5
D 12 233 514450 1038.46 2030 1978 493.5

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