ASTROSAT CZTI

Data Quality Report

Orbit 11746

Creation date: 2024-06-27T16:17:55.132890
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/AS1G08_060T01_9000001736_11746cztM0_level2.evt modeM0/AS1G08_060T01_9000001736_11746cztM0_level2_quad_clean.evt
Size (bytes)25,853,7605,356,800
Size24.7 MB 5.1 MB
Events in quadrant A129,35034,846
Events in quadrant B125,58234,699
Events in quadrant C115,65134,023
Events in quadrant D389,02429,533

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05891
B05790
C05780
D013590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28910.346021%
B28900.000000%
C28900.000000%
D2897224.913495%

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 290 290 0 0 0.00% 0.00%
B 290 290 0 0 0.00% 0.00%
C 290 290 0 0 0.00% 0.00%
D 290 290 86 86 29.66% 29.66%

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 1 162 2718 321.75 30 30 8.4
A 8 15 2471 292.19 30 30 8.4
A 1 178 1339 156.69 30 30 8.4
B 15 204 1738 209.17 31 30 8.2
B 0 187 1429 171.33 31 30 8.2
B 12 111 683 79.97 31 30 8.2
C 8 128 403 42.99 29 29 8.7
C 8 112 293 30.35 29 29 8.7
C 13 61 228 22.88 29 29 8.7
D 1 52 243299 30240.33 26 25 8.0
D 8 195 34124 4238.7 26 25 8.0
D 7 80 7968 987.36 26 25 8.0

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