ASTROSAT CZTI

Data Quality Report

Orbit 05982

Creation date: 2024-06-27T15:01:28.664937
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/AS1G06_086T01_9000000774_05982cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05982cztM0_level2_quad_clean.evt
Size (bytes)411,658,560116,830,080
Size392.6 MB 111.4 MB
Events in quadrant A2,997,381774,991
Events in quadrant B3,183,211791,454
Events in quadrant C2,954,214771,770
Events in quadrant D2,878,526735,804

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015618
B015624
C015628
D015620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160402223
B0162752372
C0158812207
D0159222204

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66461702.557930%
B66201271.918429%
C6653320.480986%
D6659881.321520%

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 7800 7133 14 14 0.18% 0.20%
B 7800 7127 0 0 0.00% 0.00%
C 7800 7131 0 0 0.00% 0.00%
D 7799 7180 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 15 234 55036 344.35 759 738 157.7
A 14 111 8476 49.07 759 738 157.7
A 4 2 8008 46.1 759 738 157.7
B 15 204 102777 682.77 767 748 149.4
B 4 81 57711 381.19 767 748 149.4
B 0 219 29439 192.0 767 748 149.4
C 14 206 54452 314.38 738 741 170.8
C 12 4 7274 38.24 738 741 170.8
C 9 54 6857 35.8 738 741 170.8
D 8 195 56137 302.74 735 710 183.1
D 12 233 23719 125.68 735 710 183.1
D 1 239 11891 61.07 735 710 183.1

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