ASTROSAT CZTI

Data Quality Report

Orbit 38893

Creation date: 2024-06-27T21:57:49.122860
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/AS1T05_058T01_9000005414_38893cztM0_level2.fits modeM0/AS1T05_058T01_9000005414_38893cztM0_level2_quad_clean.evt
Size (bytes)237,735,36042,814,080
Size226.7 MB 40.8 MB
Events in quadrant A1,383,075311,952
Events in quadrant B1,217,840312,830
Events in quadrant C1,259,236297,599
Events in quadrant D4,726,508179,626

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057950
B055340
C054700
D0159370

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A271740.147221%
B271720.073611%
C271700.000000%
D2717109540.301803%

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 2717 2717 2 2 0.07% 0.07%
B 2717 2717 1 1 0.04% 0.04%
C 2717 2717 0 0 0.00% 0.00%
D 2717 2717 1104 1104 40.63% 40.63%

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 171863 2762.02 297 291 62.1
A 13 248 25149 400.17 297 291 62.1
A 9 191 12167 191.18 297 291 62.1
B 5 172 23426 400.25 292 285 57.8
B 5 184 14463 245.23 292 285 57.8
B 0 197 12138 205.01 292 285 57.8
C 15 214 110048 1610.89 289 290 68.1
C 4 254 12700 182.14 289 290 68.1
C 2 48 2961 39.2 289 290 68.1
D 12 227 2968042 49957.8 234 227 59.4
D 1 52 240815 4049.86 234 227 59.4
D 5 222 127773 2147.01 234 227 59.4

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