ASTROSAT CZTI

Data Quality Report

Orbit 03800

Creation date: 2024-06-27T14:33:49.545687
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_194T01_9000000490_03800cztM0_level2.evt modeM0/AS1G05_194T01_9000000490_03800cztM0_level2_quad_clean.evt
Size (bytes)929,960,640144,388,800
Size886.9 MB 137.7 MB
Events in quadrant A8,425,474889,356
Events in quadrant B6,970,431886,768
Events in quadrant C5,755,699872,261
Events in quadrant D6,153,707846,961

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02600
B02600
C02600
D02600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0334103
B0292605
C0260612
D0276162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126892992.356372%
B126881200.945776%
C12689780.614706%
D126891501.182126%

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 14039 12690 181 181 1.29% 1.43%
B 14039 12690 8 8 0.06% 0.06%
C 14039 12690 16 16 0.11% 0.13%
D 14039 12690 107 107 0.76% 0.84%

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 2272361 7646.76 1453 1423 297.0
A 0 118 262637 879.57 1453 1423 297.0
A 0 50 218077 729.52 1453 1423 297.0
B 15 204 956291 3349.81 1481 1443 285.0
B 14 167 159331 553.91 1481 1443 285.0
B 4 81 53051 181.05 1481 1443 285.0
C 9 247 87803 258.52 1420 1425 334.1
C 10 65 49439 143.7 1420 1425 334.1
C 12 4 27102 76.85 1420 1425 334.1
D 13 239 277902 807.13 1411 1367 342.6
D 13 223 150012 433.85 1411 1367 342.6
D 14 34 89375 256.87 1411 1367 342.6

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
Veto Counter