ASTROSAT CZTI

Data Quality Report

Orbit 44155

Creation date: 2024-06-27T22:59:51.174504
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/AS1A13_080T05_9000005952_44155cztM0_level2.fits modeM0/AS1A13_080T05_9000005952_44155cztM0_level2_quad_clean.evt
Size (bytes)143,061,12032,330,880
Size136.4 MB 30.8 MB
Events in quadrant A1,457,816221,094
Events in quadrant B1,466,005220,413
Events in quadrant C843,702212,345
Events in quadrant D1,382,470190,117

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058300
B056040
C038390
D054210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1844191.030369%
B1845854.607046%
C184520.108401%
D1845532.872629%

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 1844 1844 18 18 0.98% 0.98%
B 1845 1845 65 65 3.52% 3.52%
C 1845 1845 1 1 0.05% 0.05%
D 1845 1845 52 52 2.82% 2.82%

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 476764 10813.42 202 199 44.1
A 13 31 82625 1870.27 202 199 44.1
A 15 223 46430 1049.0 202 199 44.1
B 5 255 241698 5906.52 202 198 40.9
B 0 219 129799 3169.74 202 198 40.9
B 15 35 60537 1475.75 202 198 40.9
C 14 254 52703 1136.04 191 193 46.2
C 3 233 15004 320.43 191 193 46.2
C 15 208 12368 263.4 191 193 46.2
D 13 171 221391 4441.55 187 181 49.8
D 1 20 106872 2142.19 187 181 49.8
D 1 52 95779 1919.46 187 181 49.8

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