ASTROSAT CZTI

Data Quality Report

Orbit 05976

Creation date: 2024-06-27T15:01:23.647529
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/AS1G06_086T01_9000000774_05976cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05976cztM0_level2_quad_clean.evt
Size (bytes)471,090,240120,274,560
Size449.3 MB 114.7 MB
Events in quadrant A2,943,829812,343
Events in quadrant B3,040,946843,468
Events in quadrant C2,914,087818,364
Events in quadrant D4,935,344724,113

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131875
B0133864
C0130762
D0190872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6371240.376707%
B6371210.329619%
C6372190.298180%
D637265810.326428%

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 7617 6373 4 4 0.05% 0.06%
B 7617 6373 2 2 0.03% 0.03%
C 7617 6373 0 0 0.00% 0.00%
D 7617 6373 511 511 6.71% 8.02%

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 4 2 30454 200.35 736 720 148.4
A 0 50 29856 196.32 736 720 148.4
A 8 192 28972 190.36 736 720 148.4
B 4 81 33245 229.56 754 737 141.6
B 0 219 24886 170.53 754 737 141.6
B 0 214 24567 168.28 754 737 141.6
C 14 206 38729 224.47 731 735 169.3
C 1 16 18246 103.45 731 735 169.3
C 13 61 5999 31.1 731 735 169.3
D 2 63 2099350 12588.99 680 658 166.7
D 1 239 107430 640.47 680 658 166.7
D 12 221 78420 466.45 680 658 166.7

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