ASTROSAT CZTI

Data Quality Report

Orbit 40218

Creation date: 2024-06-27T22:13:44.044660
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/AS1C07_001T01_9000005532_40218cztM0_level2.fits modeM0/AS1C07_001T01_9000005532_40218cztM0_level2_quad_clean.evt
Size (bytes)347,221,44093,277,440
Size331.1 MB 89.0 MB
Events in quadrant A3,493,334604,505
Events in quadrant B2,571,269639,280
Events in quadrant C2,775,087621,999
Events in quadrant D3,565,176556,746

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141133
B0118952
C0120492
D0148762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57512213.842810%
B5751170.295601%
C5751150.260824%
D57511903.303773%

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 9247 5753 160 160 1.73% 2.78%
B 9247 5753 8 8 0.09% 0.14%
C 9247 5753 8 8 0.09% 0.14%
D 9247 5753 152 152 1.64% 2.64%

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 13 248 674588 5516.68 596 584 122.2
A 10 83 478788 3914.07 596 584 122.2
A 2 79 26199 209.66 596 584 122.2
B 5 255 82740 704.67 604 587 116.6
B 0 229 34689 292.51 604 587 116.6
B 0 245 32530 273.99 604 587 116.6
C 15 214 247845 1800.6 593 597 137.3
C 9 187 126049 913.61 593 597 137.3
C 0 10 39221 281.28 593 597 137.3
D 12 227 1024764 7277.16 579 561 140.7
D 9 19 177328 1255.96 579 561 140.7
D 13 249 75437 532.01 579 561 140.7

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