ASTROSAT CZTI

Data Quality Report

Orbit 13932

Creation date: 2024-06-27T16:48:06.921711
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/AS1T02_041T01_9000002058_13932cztM0_level2.evt modeM0/AS1T02_041T01_9000002058_13932cztM0_level2_quad_clean.evt
Size (bytes)1,078,303,680162,665,280
Size1.0 GB 155.1 MB
Events in quadrant A5,472,5671,027,452
Events in quadrant B6,115,4191,039,709
Events in quadrant C6,605,4161,047,920
Events in quadrant D13,642,380969,698

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246323
B0260342
C0275682
D0489882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A121681301.068376%
B121681581.298488%
C121683542.909270%
D12168149612.294543%

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 13479 12169 0 0 0.00% 0.00%
B 13479 12169 14 14 0.10% 0.12%
C 13479 12169 212 212 1.57% 1.74%
D 13479 12169 1469 1469 10.90% 12.07%

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 8 15 28297 94.25 1403 1370 285.7
A 1 162 21461 70.32 1403 1370 285.7
A 11 29 15051 47.89 1403 1370 285.7
B 0 230 277911 1038.51 1404 1368 266.3
B 10 245 116786 433.43 1404 1368 266.3
B 4 80 61578 226.11 1404 1368 266.3
C 4 254 1022997 3258.41 1364 1374 313.5
C 3 233 225081 713.5 1364 1374 313.5
C 8 128 14854 42.99 1364 1374 313.5
D 1 52 6981900 22348.28 1317 1287 312.4
D 5 233 771188 2464.82 1317 1287 312.4
D 12 110 276268 880.35 1317 1287 312.4

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