ASTROSAT CZTI

Data Quality Report

Orbit 47035

Creation date: 2024-06-27T23:31:00.806789
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/AS1C09_005T01_9000006296_47035cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47035cztM0_level2_quad_clean.evt
Size (bytes)830,076,480154,702,080
Size791.6 MB 147.5 MB
Events in quadrant A9,735,2241,058,197
Events in quadrant B8,970,641950,904
Events in quadrant C4,926,7651,037,457
Events in quadrant D6,312,136936,628

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02060
B02060
C02060
D02060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0358172
B0334912
C0221322
D0260782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A101102532.502473%
B10111148314.667194%
C101111911.889032%
D101114324.272574%

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 11725 10112 37 37 0.32% 0.37%
B 11726 10112 801 801 6.83% 7.92%
C 11726 10113 134 134 1.14% 1.33%
D 11726 10113 329 329 2.81% 3.25%

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 5298777 22966.32 1105 1080 230.7
A 9 191 127127 546.43 1105 1080 230.7
A 13 248 22503 92.87 1105 1080 230.7
B 3 112 4278836 20882.05 1046 1016 204.9
B 4 171 174003 844.43 1046 1016 204.9
B 5 172 149390 724.28 1046 1016 204.9
C 12 250 398740 1567.89 1089 1095 253.6
C 14 254 255714 1003.95 1089 1095 253.6
C 1 3 15615 57.25 1089 1095 253.6
D 1 52 1279267 4786.75 1080 1046 267.0
D 1 47 409115 1528.16 1080 1046 267.0
D 12 233 175108 651.84 1080 1046 267.0

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