ASTROSAT CZTI

Data Quality Report

Orbit 45022

Creation date: 2024-06-27T23:09:05.569316
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/AS1A13_020T01_9000006040_45022cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45022cztM0_level2_quad_clean.evt
Size (bytes)489,165,12096,739,200
Size466.5 MB 92.3 MB
Events in quadrant A4,737,488655,433
Events in quadrant B3,185,159675,472
Events in quadrant C3,939,300625,480
Events in quadrant D5,782,122555,171

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185181
B0134761
C0157161
D0212711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5974771.288919%
B59751021.707113%
C59753095.171548%
D59755959.958159%

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 7029 5975 0 0 0.00% 0.00%
B 7030 5976 51 51 0.73% 0.85%
C 7030 5976 246 246 3.50% 4.12%
D 7030 5976 547 547 7.78% 9.15%

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 10 83 2105933 14981.71 677 661 140.5
A 13 248 9469 62.68 677 661 140.5
A 3 137 7474 48.48 677 661 140.5
B 0 189 262496 1973.97 669 649 132.6
B 4 171 75378 563.35 669 649 132.6
B 5 255 63512 473.9 669 649 132.6
C 14 254 1203270 7816.06 652 655 153.9
C 1 3 159647 1033.32 652 655 153.9
C 3 233 27972 177.54 652 655 153.9
D 5 222 987931 6025.37 648 628 163.9
D 11 241 607385 3702.95 648 628 163.9
D 13 187 423644 2581.61 648 628 163.9

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