ASTROSAT CZTI

Data Quality Report

Orbit 16043

Creation date: 2024-06-27T17:17:12.021781
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_012T01_9000002370_16043cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16043cztM0_level2_quad_clean.evt
Size (bytes)567,256,320123,690,240
Size541.0 MB 118.0 MB
Events in quadrant A4,123,223790,184
Events in quadrant B4,279,810803,515
Events in quadrant C4,219,207782,907
Events in quadrant D3,974,338773,580

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181593
B0184942
C0182522
D0180532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85772152.506704%
B85772963.451090%
C85773223.754226%
D85771191.387432%

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 8983 8579 1 1 0.01% 0.01%
B 8983 8578 2 2 0.02% 0.02%
C 8983 8579 0 0 0.00% 0.00%
D 8983 8580 1 1 0.01% 0.01%

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 15 223 19342 84.54 1061 1038 216.5
A 0 226 9277 38.05 1061 1038 216.5
A 9 143 9228 37.83 1061 1038 216.5
B 4 48 47199 222.09 1064 1036 207.9
B 12 111 25358 117.01 1064 1036 207.9
B 0 229 22023 100.97 1064 1036 207.9
C 14 238 154813 630.3 1028 1035 244.0
C 3 233 35817 142.56 1028 1035 244.0
C 10 22 19988 77.68 1028 1035 244.0
D 2 152 40737 156.43 1040 1008 254.0
D 2 234 30073 114.44 1040 1008 254.0
D 14 226 10074 35.7 1040 1008 254.0

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