ASTROSAT CZTI

Data Quality Report

Orbit 43364

Creation date: 2024-06-27T22:51:04.852206
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/AS1A09_143T01_9000005870_43364cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43364cztM0_level2_quad_clean.evt
Size (bytes)367,384,32095,832,000
Size350.4 MB 91.4 MB
Events in quadrant A3,533,151635,115
Events in quadrant B3,186,104655,929
Events in quadrant C3,337,557622,309
Events in quadrant D3,077,559570,613

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138852
B0133572
C0135062
D0135282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5976991.656627%
B5976711.188086%
C5976140.234270%
D5976601.004016%

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 7288 5977 65 65 0.89% 1.09%
B 7288 5977 45 45 0.62% 0.75%
C 7288 5977 8 8 0.11% 0.13%
D 7288 5977 58 58 0.80% 0.97%

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 652816 4840.53 646 631 134.7
A 15 237 340920 2525.63 646 631 134.7
A 13 6 20049 144.12 646 631 134.7
B 0 189 400094 3211.66 640 622 124.4
B 5 172 178401 1429.3 640 622 124.4
B 0 245 26774 210.26 640 622 124.4
C 8 229 308502 2099.9 628 631 146.6
C 15 214 248708 1692.06 628 631 146.6
C 3 233 232848 1583.88 628 631 146.6
D 12 218 249794 1610.5 630 611 154.7
D 12 233 133836 861.05 630 611 154.7
D 5 32 67315 431.12 630 611 154.7

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