ASTROSAT CZTI

Data Quality Report

Orbit 41334

Creation date: 2024-06-27T22:27:45.402279
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/AS1A12_037T03_9000005654_41334cztM0_level2.fits modeM0/AS1A12_037T03_9000005654_41334cztM0_level2_quad_clean.evt
Size (bytes)145,244,16030,925,440
Size138.5 MB 29.5 MB
Events in quadrant A1,095,735214,335
Events in quadrant B1,607,464199,612
Events in quadrant C1,373,970193,382
Events in quadrant D1,146,283188,399

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043922
B060601
C052301
D047211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A193650.258264%
B193625713.274793%
C19361537.902893%
D1936522.685950%

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 3369 1937 2 2 0.06% 0.10%
B 3369 1936 200 200 5.94% 10.33%
C 3369 1937 156 156 4.63% 8.05%
D 3369 1937 40 40 1.19% 2.07%

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 210913 4423.25 222 217 47.6
A 2 79 21965 456.57 222 217 47.6
A 12 189 3514 69.22 222 217 47.6
B 5 255 748923 17120.02 212 206 43.7
B 0 190 18876 426.9 212 206 43.7
B 12 111 5493 120.89 212 206 43.7
C 0 10 292811 5858.18 205 206 49.9
C 9 54 200282 4005.68 205 206 49.9
C 15 214 80553 1608.61 205 206 49.9
D 13 249 257700 4730.83 212 206 54.4
D 1 52 31778 580.06 212 206 54.4
D 5 222 22310 406.11 212 206 54.4

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