ASTROSAT CZTI

Data Quality Report

Orbit 33348

Creation date: 2024-06-27T20:47:44.867255
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/AS1A10_058T15_9000004786_33348cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33348cztM0_level2_quad_clean.evt
Size (bytes)538,174,08051,877,440
Size513.2 MB 49.5 MB
Events in quadrant A3,165,282308,270
Events in quadrant B3,988,446295,783
Events in quadrant C3,592,778304,323
Events in quadrant D5,187,313284,142

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126783
B0152212
C0138572
D0191212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5393340.630447%
B53934297.954756%
C53931823.374745%
D53932564.746894%

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 7186 5394 15 15 0.21% 0.28%
B 7186 5394 303 303 4.22% 5.62%
C 7186 5394 167 167 2.32% 3.10%
D 7186 5394 244 244 3.40% 4.52%

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 15 169 578760 4327.58 668 657 133.6
A 13 254 7915 54.33 668 657 133.6
A 3 137 6180 41.34 668 657 133.6
B 5 172 843405 6760.27 653 636 124.7
B 0 219 193412 1546.35 653 636 124.7
B 5 200 170007 1358.61 653 636 124.7
C 1 23 372699 2521.27 646 651 147.6
C 15 214 235061 1588.54 646 651 147.6
C 14 254 213826 1444.63 646 651 147.6
D 8 195 1118901 6593.63 636 624 169.6
D 1 52 597494 3519.29 636 624 169.6
D 12 233 279385 1643.64 636 624 169.6

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