ASTROSAT CZTI

Data Quality Report

Orbit 04167

Creation date: 2024-06-27T14:38:17.529049
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_240T01_9000000536_04167cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04167cztM0_level2_quad_clean.evt
Size (bytes)463,746,24057,084,480
Size442.3 MB 54.4 MB
Events in quadrant A3,894,625332,525
Events in quadrant B3,481,067339,805
Events in quadrant C2,792,303327,609
Events in quadrant D3,473,843313,762

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153862
B0140931
C0121691
D0144131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59272123.576852%
B59271492.513919%
C5927570.961701%
D59271071.805298%

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 7162 5928 88 88 1.23% 1.48%
B 7162 5928 42 42 0.59% 0.71%
C 7162 5928 0 0 0.00% 0.00%
D 7162 5928 31 31 0.43% 0.52%

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 0 199 664636 4409.03 742 727 150.6
A 0 50 281784 1866.5 742 727 150.6
A 0 226 69645 457.69 742 727 150.6
B 10 16 255768 1780.49 749 733 143.2
B 8 3 146427 1017.14 749 733 143.2
B 14 167 103015 714.07 749 733 143.2
C 13 61 5918 31.51 712 717 165.1
C 10 65 5510 29.04 712 717 165.1
C 9 144 3831 18.86 712 717 165.1
D 2 232 406365 2381.74 714 694 170.3
D 10 172 144137 842.17 714 694 170.3
D 2 63 93002 541.95 714 694 170.3

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