ASTROSAT CZTI

Data Quality Report

Orbit 04373

Creation date: 2024-06-27T14:41:04.579829
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/AS1G05_252T01_9000000544_04373cztM0_level2.evt modeM0/AS1G05_252T01_9000000544_04373cztM0_level2_quad_clean.evt
Size (bytes)385,945,92056,583,360
Size368.1 MB 54.0 MB
Events in quadrant A4,644,163339,840
Events in quadrant B2,178,545355,688
Events in quadrant C2,083,763349,646
Events in quadrant D2,467,027342,664

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170240
B095540
C094920
D0105920

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A462861813.353500%
B4628841.815039%
C4628651.404494%
D46281062.290406%

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 4628 4628 406 406 8.77% 8.77%
B 4628 4628 2 2 0.04% 0.04%
C 4627 4627 0 0 0.00% 0.00%
D 4627 4627 24 24 0.52% 0.52%

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 13 251 2587302 24079.19 522 510 107.4
A 0 50 40557 372.78 522 510 107.4
A 13 14 6226 53.21 522 510 107.4
B 4 48 22601 209.72 545 534 105.2
B 15 204 13295 121.28 545 534 105.2
B 0 183 8526 75.95 545 534 105.2
C 9 16 22347 177.72 523 525 122.8
C 9 247 8517 65.08 523 525 122.8
C 12 4 6442 48.18 523 525 122.8
D 2 63 198251 1547.44 525 510 127.8
D 2 136 99358 773.55 525 510 127.8
D 2 14 34650 267.17 525 510 127.8

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