ASTROSAT CZTI

Data Quality Report

Orbit 45246

Creation date: 2024-06-27T23:11:20.068255
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_038T03_9000006058_45246cztM0_level2.fits modeM0/AS1A13_038T03_9000006058_45246cztM0_level2_quad_clean.evt
Size (bytes)352,131,84071,778,240
Size335.8 MB 68.5 MB
Events in quadrant A3,726,916479,129
Events in quadrant B2,043,368493,314
Events in quadrant C3,366,779454,612
Events in quadrant D3,544,879426,771

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140940
B092520
C0131270
D0136220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4537110.242451%
B4537160.352656%
C45383026.654914%
D45381453.195240%

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 4537 4537 6 6 0.13% 0.13%
B 4537 4537 10 10 0.22% 0.22%
C 4538 4538 269 269 5.93% 5.93%
D 4538 4538 143 143 3.15% 3.15%

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 1587929 15325.28 496 486 103.6
A 12 227 173237 1667.75 496 486 103.6
A 13 248 26012 246.43 496 486 103.6
B 0 168 35143 349.63 495 480 99.1
B 0 183 20308 200.0 495 480 99.1
B 0 245 12670 122.96 495 480 99.1
C 14 254 1021398 9046.89 477 481 112.8
C 12 250 413727 3661.99 477 481 112.8
C 1 3 27992 243.79 477 481 112.8
D 11 241 591996 4765.95 485 470 124.1
D 13 249 402201 3236.76 485 470 124.1
D 12 17 212804 1710.78 485 470 124.1

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