ASTROSAT CZTI

Data Quality Report

Orbit 03415

Creation date: 2024-06-27T14:28:41.749414
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_210T01_9000000454_03415cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03415cztM0_level2_quad_clean.evt
Size (bytes)499,633,92075,176,640
Size476.5 MB 71.7 MB
Events in quadrant A2,947,523467,356
Events in quadrant B4,450,202466,891
Events in quadrant C4,455,713459,876
Events in quadrant D2,858,432450,193

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129713
B0173372
C0174192
D0129752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6188490.791855%
B6188961.551390%
C61882083.361345%
D6188400.646412%

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 7478 6189 3 3 0.04% 0.05%
B 7478 6189 43 43 0.58% 0.69%
C 7478 6189 148 148 1.98% 2.39%
D 7478 6189 6 6 0.08% 0.10%

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 0 118 50882 333.48 742 725 150.4
A 8 15 23039 148.36 742 725 150.4
A 0 226 12642 79.23 742 725 150.4
B 15 204 947354 6639.05 749 733 142.6
B 14 167 497264 3482.38 749 733 142.6
B 7 252 49186 339.82 749 733 142.6
C 14 223 662192 3957.35 721 724 167.1
C 8 208 478081 2855.88 721 724 167.1
C 7 220 346854 2070.79 721 724 167.1
D 13 223 43111 243.6 721 701 174.1
D 12 246 24547 136.97 721 701 174.1
D 2 37 14622 79.96 721 701 174.1

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