ASTROSAT CZTI

Data Quality Report

Orbit 29607

Creation date: 2024-06-27T20:05:59.623333
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/AS1T03_286T01_9000004268_29607cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29607cztM0_level2_quad_clean.evt
Size (bytes)526,412,16091,897,920
Size502.0 MB 87.6 MB
Events in quadrant A3,328,848577,939
Events in quadrant B3,418,297591,943
Events in quadrant C3,524,960559,124
Events in quadrant D5,176,527547,594

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147662
B0149171
C0151671
D0201381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72751011.388316%
B72761381.896647%
C72762643.628367%
D72763514.824079%

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 7515 7276 0 0 0.00% 0.00%
B 7516 7276 7 7 0.09% 0.10%
C 7516 7277 2 2 0.03% 0.03%
D 7516 7277 248 248 3.30% 3.41%

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 1 113 14363 78.12 858 838 173.1
A 13 254 12563 67.72 858 838 173.1
A 3 137 8933 46.76 858 838 173.1
B 12 111 21138 123.24 853 830 164.8
B 5 172 20990 122.35 853 830 164.8
B 0 230 19244 111.75 853 830 164.8
C 14 238 186106 974.13 815 821 190.2
C 14 254 72944 379.18 815 821 190.2
C 10 22 43109 222.33 815 821 190.2
D 7 80 1184003 6150.81 816 793 192.4
D 8 195 441267 2289.76 816 793 192.4
D 12 227 227473 1178.38 816 793 192.4

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