ASTROSAT CZTI

Data Quality Report

Orbit 24213

Creation date: 2024-06-27T19:03:31.809987
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/AS1A07_010T12_9000003582_24213cztM0_level2.evt modeM0/AS1A07_010T12_9000003582_24213cztM0_level2_quad_clean.evt
Size (bytes)496,823,04093,407,040
Size473.8 MB 89.1 MB
Events in quadrant A3,188,547601,927
Events in quadrant B3,307,222616,172
Events in quadrant C3,305,131588,007
Events in quadrant D4,795,462560,206

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136162
B0139662
C0139172
D0186792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6624390.588768%
B6625520.784906%
C6625681.026415%
D66252173.275472%

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 8774 6625 0 0 0.00% 0.00%
B 8775 6626 2 2 0.02% 0.03%
C 8775 6626 1 1 0.01% 0.02%
D 8775 6626 228 228 2.60% 3.44%

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 13 254 10742 60.24 826 809 164.9
A 0 226 7172 38.59 826 809 164.9
A 3 137 7117 38.26 826 809 164.9
B 0 245 19143 117.55 830 809 156.0
B 12 111 18260 111.89 830 809 156.0
B 0 229 17337 105.97 830 809 156.0
C 14 238 129090 700.76 794 798 183.1
C 3 233 33527 178.77 794 798 183.1
C 7 247 25317 133.93 794 798 183.1
D 1 52 732336 3830.14 793 770 191.0
D 7 238 669103 3499.08 793 770 191.0
D 8 195 286872 1497.9 793 770 191.0

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