ASTROSAT CZTI

Data Quality Report

Orbit 30047

Creation date: 2024-06-27T20:10:13.643611
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/AS1A10_071T09_9000004320_30047cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30047cztM0_level2_quad_clean.evt
Size (bytes)490,176,00088,375,680
Size467.5 MB 84.3 MB
Events in quadrant A3,123,523574,376
Events in quadrant B4,934,696574,954
Events in quadrant C3,283,620537,022
Events in quadrant D3,066,404540,705

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132502
B0193862
C0136912
D0133262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6433270.419711%
B6433580.901601%
C64331902.953521%
D643260.093284%

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 7538 6434 6 6 0.08% 0.09%
B 7538 6434 2 2 0.03% 0.03%
C 7538 6434 12 12 0.16% 0.19%
D 7537 6433 2 2 0.03% 0.03%

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 8 192 27954 168.31 802 787 161.4
A 13 254 12585 73.09 802 787 161.4
A 3 137 8132 45.51 802 787 161.4
B 6 159 1771183 11661.38 794 773 151.8
B 5 255 31068 199.55 794 773 151.8
B 12 111 18921 119.54 794 773 151.8
C 14 238 167659 938.27 756 762 177.9
C 14 254 64779 359.89 756 762 177.9
C 15 208 64555 358.63 756 762 177.9
D 8 195 120980 665.17 764 746 180.8
D 2 250 38159 206.98 764 746 180.8
D 2 234 22195 118.66 764 746 180.8

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