ASTROSAT CZTI

Data Quality Report

Orbit 05441

Creation date: 2024-06-27T14:55:13.724273
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/AS1G05_204T01_9000000688_05441cztM0_level2.evt modeM0/AS1G05_204T01_9000000688_05441cztM0_level2_quad_clean.evt
Size (bytes)444,885,120109,526,400
Size424.3 MB 104.5 MB
Events in quadrant A2,992,254724,050
Events in quadrant B3,516,771730,652
Events in quadrant C2,962,126732,915
Events in quadrant D3,579,388695,282

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131372
B0147581
C0129861
D0148141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6223681.092721%
B6223791.269484%
C6223500.803471%
D62231211.944400%

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 7508 6224 3 3 0.04% 0.05%
B 7508 6224 13 13 0.17% 0.21%
C 7508 6224 0 0 0.00% 0.00%
D 7508 6224 58 58 0.77% 0.93%

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 0 50 49935 323.81 754 738 151.9
A 15 174 21534 136.88 754 738 151.9
A 13 6 15092 94.47 754 738 151.9
B 15 204 372072 2607.78 761 743 142.4
B 0 228 66399 461.09 761 743 142.4
B 11 51 59137 410.09 761 743 142.4
C 9 247 29900 172.32 746 750 169.2
C 1 16 14267 79.91 746 750 169.2
C 13 61 6064 31.41 746 750 169.2
D 2 33 304924 1698.34 741 718 179.1
D 8 195 122934 682.31 741 718 179.1
D 2 152 112008 621.32 741 718 179.1

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