ASTROSAT CZTI

Data Quality Report

Orbit 25523

Creation date: 2024-06-27T19:18:38.018851
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/AS1A07_147T01_9000003722_25523cztM0_level2.evt modeM0/AS1A07_147T01_9000003722_25523cztM0_level2_quad_clean.evt
Size (bytes)517,366,080100,578,240
Size493.4 MB 95.9 MB
Events in quadrant A3,494,872655,763
Events in quadrant B3,557,271662,367
Events in quadrant C3,512,436622,417
Events in quadrant D4,618,898608,159

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147600
B0149170
C0148160
D0185660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71471462.042815%
B71461752.448922%
C71461882.630842%
D71461602.239015%

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 7457 7148 0 0 0.00% 0.00%
B 7456 7147 5 5 0.07% 0.07%
C 7456 7147 0 0 0.00% 0.00%
D 7456 7147 35 35 0.47% 0.49%

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 13 254 10311 50.95 906 889 184.9
A 3 137 8505 41.18 906 889 184.9
A 0 226 7790 37.32 906 889 184.9
B 5 235 38885 221.52 893 871 171.6
B 12 111 21605 120.82 893 871 171.6
B 11 111 19401 107.98 893 871 171.6
C 14 238 136693 674.59 859 866 201.3
C 2 16 14060 65.53 859 866 201.3
C 7 247 9207 41.43 859 866 201.3
D 8 195 878252 4116.14 877 853 213.2
D 1 52 336801 1576.03 877 853 213.2
D 13 104 43244 198.87 877 853 213.2

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