ASTROSAT CZTI

Data Quality Report

Orbit 05077

Creation date: 2024-06-27T14:50:58.553672
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_103T01_9000000642_05077cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05077cztM0_level2_quad_clean.evt
Size (bytes)477,241,92070,816,320
Size455.1 MB 67.5 MB
Events in quadrant A2,972,123431,107
Events in quadrant B3,247,165435,705
Events in quadrant C2,931,124426,379
Events in quadrant D4,855,243391,483

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134359
B0140522
C0134164
D0191194

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6580290.440729%
B6583490.744341%
C6582160.243087%
D65824416.700091%

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 8633 6584 1 1 0.01% 0.02%
B 8633 6585 12 12 0.14% 0.18%
C 8633 6585 0 0 0.00% 0.00%
D 8633 6585 404 404 4.68% 6.14%

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 15 174 19743 123.52 762 747 153.8
A 13 251 14851 91.71 762 747 153.8
A 0 226 7670 45.02 762 747 153.8
B 15 204 85801 579.2 772 756 146.8
B 0 219 67819 456.73 772 756 146.8
B 5 200 47875 320.9 772 756 146.8
C 1 16 16358 90.43 744 749 172.6
C 13 61 6136 31.21 744 749 172.6
C 14 67 5285 26.28 744 749 172.6
D 7 237 1190582 6675.86 723 701 178.2
D 12 233 148264 827.91 723 701 178.2
D 13 239 140148 782.37 723 701 178.2

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