ASTROSAT CZTI

Data Quality Report

Orbit 00579

Creation date: 2024-06-27T13:59:58.954006
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/AS1P01_014T01_9000000080_00579cztM0_level2.evt modeM0/AS1P01_014T01_9000000080_00579cztM0_level2_quad_clean.evt
Size (bytes)700,606,08059,771,520
Size668.2 MB 57.0 MB
Events in quadrant A5,653,809378,363
Events in quadrant B4,866,768394,283
Events in quadrant C4,438,050385,536
Events in quadrant D5,985,501361,493

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197671
B0173921
C0161201
D0206611

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41152596.294046%
B411520.048603%
C411520.048603%
D41151062.575942%

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 4115 4115 451 451 10.96% 10.96%
B 4115 4115 40 40 0.97% 0.97%
C 4115 4115 33 33 0.80% 0.80%
D 4115 4115 514 514 12.49% 12.49%

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 0 149 715268 2547.7 1256 1245 280.3
A 0 69 43774 151.75 1256 1245 280.3
A 0 238 31447 107.76 1256 1245 280.3
B 5 251 40108 131.64 1247 1255 295.1
B 4 235 13994 43.16 1247 1255 295.1
B 4 206 11462 34.58 1247 1255 295.1
C 15 241 34724 108.87 1115 1153 308.3
C 9 241 17755 53.84 1115 1153 308.3
C 9 206 4690 11.47 1115 1153 308.3
D 1 4 1189020 3494.54 1094 1138 339.9
D 12 237 193417 565.65 1094 1138 339.9
D 13 51 83170 241.32 1094 1138 339.9

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