ASTROSAT CZTI

Data Quality Report

Orbit 38232

Creation date: 2024-06-27T21:50:04.035366
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/AS1A07_145T01_9000005370_38232cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38232cztM0_level2_quad_clean.evt
Size (bytes)363,519,36093,041,280
Size346.7 MB 88.7 MB
Events in quadrant A2,951,763624,603
Events in quadrant B2,656,763640,227
Events in quadrant C2,596,670620,198
Events in quadrant D4,847,922568,618

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119973
B0112482
C0107302
D0181902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A518880.154202%
B5188581.117965%
C518870.134927%
D5188651.252891%

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 7280 5189 6 6 0.08% 0.12%
B 7280 5189 34 34 0.47% 0.66%
C 7280 5189 5 5 0.07% 0.10%
D 7280 5188 51 51 0.70% 0.98%

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 369887 3110.96 596 584 118.7
A 12 16 160677 1348.6 596 584 118.7
A 12 189 80489 673.11 596 584 118.7
B 5 172 260283 2284.24 595 579 113.7
B 0 229 29815 257.15 595 579 113.7
B 12 111 13995 118.0 595 579 113.7
C 15 214 218497 1615.81 585 589 134.9
C 14 254 35339 257.67 585 589 134.9
C 0 10 19214 138.11 585 589 134.9
D 10 203 2002290 14217.69 577 561 140.8
D 7 223 264880 1877.38 577 561 140.8
D 13 249 138854 982.25 577 561 140.8

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