ASTROSAT CZTI

Data Quality Report

Orbit 31583

Creation date: 2024-06-27T20:30:15.178854
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_094T73_9000004606_31583cztM0_level2.evt modeM0/AS1A10_094T73_9000004606_31583cztM0_level2_quad_clean.evt
Size (bytes)380,980,80087,284,160
Size363.3 MB 83.2 MB
Events in quadrant A2,043,991610,370
Events in quadrant B3,345,505610,450
Events in quadrant C2,168,022591,048
Events in quadrant D3,707,874548,255

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085841
B0126271
C088701
D0136471

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4010350.872818%
B40101022.543641%
C4010771.920200%
D40102185.436409%

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 5260 4010 0 0 0.00% 0.00%
B 5260 4010 9 9 0.17% 0.22%
C 5260 4010 1 1 0.02% 0.02%
D 5260 4010 177 177 3.37% 4.41%

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 13 254 7465 65.71 529 520 105.7
A 3 137 4896 41.4 529 520 105.7
A 0 226 4582 38.43 529 520 105.7
B 6 159 1108055 11321.33 521 510 97.8
B 4 80 98341 1000.03 521 510 97.8
B 12 1 47250 477.78 521 510 97.8
C 14 238 85441 721.7 510 514 117.7
C 3 233 44589 374.54 510 514 117.7
C 4 175 26644 222.05 510 514 117.7
D 8 195 1392900 11868.09 498 485 117.3
D 12 218 143223 1216.61 498 485 117.3
D 12 233 85136 721.51 498 485 117.3

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