ASTROSAT CZTI

Data Quality Report

Orbit 29344

Creation date: 2024-06-27T20:03:02.571358
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/AS1T03_279T01_9000004218_29344cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29344cztM0_level2_quad_clean.evt
Size (bytes)776,335,68077,736,960
Size740.4 MB 74.1 MB
Events in quadrant A3,569,199496,550
Events in quadrant B3,762,612500,246
Events in quadrant C3,753,403471,301
Events in quadrant D11,945,909390,725

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149971
B0154801
C0153641
D0404501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71051442.026742%
B71061682.364199%
C71063144.418801%
D7106306543.132564%

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 7625 7106 17 17 0.22% 0.24%
B 7626 7107 28 28 0.37% 0.39%
C 7626 7107 0 0 0.00% 0.00%
D 7626 7107 2419 2419 31.72% 34.04%

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 15 174 80289 441.27 893 873 180.0
A 0 13 28980 156.18 893 873 180.0
A 13 254 14791 77.34 893 873 180.0
B 5 172 164771 974.35 883 862 168.2
B 3 209 48448 282.87 883 862 168.2
B 10 245 30246 174.67 883 862 168.2
C 14 238 199752 1007.65 846 854 197.4
C 3 233 107986 542.75 846 854 197.4
C 14 254 95247 478.21 846 854 197.4
D 12 33 4531765 25985.13 728 709 174.4
D 1 52 1977387 11336.04 728 709 174.4
D 7 80 1084114 6213.22 728 709 174.4

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