ASTROSAT CZTI

Data Quality Report

Orbit 13129

Creation date: 2024-06-27T16:36:41.461100
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_031T02_9000001934_13129cztM0_level2.evt modeM0/AS1G08_031T02_9000001934_13129cztM0_level2_quad_clean.evt
Size (bytes)590,771,520104,892,480
Size563.4 MB 100.0 MB
Events in quadrant A3,058,282719,079
Events in quadrant B5,162,113659,985
Events in quadrant C2,727,128728,885
Events in quadrant D6,523,412635,057

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132762
B0195341
C0126111
D0237521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6201340.548299%
B6201103416.674730%
C620170.112885%
D6201116818.835672%

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 7403 6203 1 1 0.01% 0.02%
B 7403 6203 637 637 8.60% 10.27%
C 7403 6203 0 0 0.00% 0.00%
D 7403 6203 1395 1395 18.84% 22.49%

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 12 189 147132 1017.92 718 704 143.8
A 14 254 50620 347.0 718 704 143.8
A 15 223 29201 198.1 718 704 143.8
B 0 85 1186072 9705.21 660 645 122.1
B 4 239 1071322 8765.74 660 645 122.1
B 3 64 262100 2140.56 660 645 122.1
C 13 61 5069 27.43 697 700 159.3
C 14 234 4632 24.69 697 700 159.3
C 12 4 3505 17.61 697 700 159.3
D 13 122 3401559 22269.95 653 636 152.7
D 1 52 599704 3922.82 653 636 152.7
D 2 234 19060 120.64 653 636 152.7

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