ASTROSAT CZTI

Data Quality Report

Orbit 09046

Creation date: 2024-06-27T15:40:32.368571
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/AS1A03_046T01_9000001260_09046cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09046cztM0_level2_quad_clean.evt
Size (bytes)358,485,12059,771,520
Size341.9 MB 57.0 MB
Events in quadrant A2,923,651381,925
Events in quadrant B2,202,774390,562
Events in quadrant C1,945,617382,890
Events in quadrant D3,500,453359,831

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160616
B091333
C0859511
D01312434

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41761263.017241%
B4180801.913876%
C4176631.508621%
D41742044.887398%

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 5476 4181 21 21 0.38% 0.50%
B 5476 4181 7 7 0.13% 0.17%
C 5476 4181 0 0 0.00% 0.00%
D 5476 4182 167 167 3.05% 3.99%

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 8 5 407946 3886.45 516 505 104.8
A 1 162 154621 1470.06 516 505 104.8
A 5 16 110745 1051.55 516 505 104.8
B 4 48 48174 487.15 519 507 97.8
B 6 51 42612 430.31 519 507 97.8
B 10 16 23636 236.38 519 507 97.8
C 13 61 3885 29.6 498 500 114.4
C 12 4 1949 12.67 498 500 114.4
C 3 202 1240 6.47 498 500 114.4
D 1 52 1027664 8453.9 492 480 121.5
D 6 225 384397 3159.7 492 480 121.5
D 12 233 130829 1072.79 492 480 121.5

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