ASTROSAT CZTI

Data Quality Report

Orbit 04094

Creation date: 2024-06-27T14:37:15.047099
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/AS1G05_222T01_9000000520_04094cztM0_level2.evt modeM0/AS1G05_222T01_9000000520_04094cztM0_level2_quad_clean.evt
Size (bytes)288,987,84011,635,200
Size275.6 MB 11.1 MB
Events in quadrant A1,422,12250,500
Events in quadrant B1,724,19249,755
Events in quadrant C4,282,35129,658
Events in quadrant D1,157,03247,115

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059251
B067091
C0142521
D050691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2424230.948845%
B24241245.115512%
C2424152462.871287%
D242460.247525%

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 2424 2424 4 4 0.17% 0.17%
B 2424 2424 86 86 3.55% 3.55%
C 2423 2423 1485 1485 61.29% 61.29%
D 2424 2424 1 1 0.04% 0.04%

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 0 199 187311 2928.06 306 299 63.9
A 0 118 24204 374.28 306 299 63.9
A 0 226 22154 342.18 306 299 63.9
B 10 16 272846 4576.02 305 298 59.6
B 14 167 122990 2059.97 305 298 59.6
B 3 0 98431 1647.63 305 298 59.6
C 12 204 3391837 63407.84 227 228 53.5
C 13 61 1782 29.05 227 228 53.5
C 12 4 600 6.95 227 228 53.5
D 2 37 17097 232.38 294 285 72.3
D 7 223 12403 167.5 294 285 72.3
D 2 232 7061 93.66 294 285 72.3

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