ASTROSAT CZTI

Data Quality Report

Orbit 19399

Creation date: 2024-06-27T18:02:23.386254
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/AS1A05_208T03_9000002874_19399cztM0_level2.evt modeM0/AS1A05_208T03_9000002874_19399cztM0_level2_quad_clean.evt
Size (bytes)184,248,00025,176,960
Size175.7 MB 24.0 MB
Events in quadrant A676,381192,032
Events in quadrant B712,130192,520
Events in quadrant C709,404185,100
Events in quadrant D3,381,98685,104

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028810
B029660
C029370
D0110030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A143400.000000%
B143500.000000%
C143570.487805%
D1435140497.839721%

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 1434 1434 0 0 0.00% 0.00%
B 1435 1435 0 0 0.00% 0.00%
C 1435 1435 0 0 0.00% 0.00%
D 1434 1434 1335 1335 93.10% 93.10%

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 2306 55.85 175 170 38.2
A 0 226 1528 35.51 175 170 38.2
A 3 137 1327 30.25 175 170 38.2
B 0 198 21382 612.84 172 168 34.6
B 0 190 11060 314.65 172 168 34.6
B 12 111 3810 105.21 172 168 34.6
C 14 238 26141 625.93 171 172 41.5
C 7 247 7737 182.34 171 172 41.5
C 3 233 4846 112.66 171 172 41.5
D 10 66 1891090 78072.91 93 90 24.2
D 7 238 970548 40066.89 93 90 24.2
D 2 16 141349 5832.1 93 90 24.2

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