ASTROSAT CZTI

Data Quality Report

Orbit 29035

Creation date: 2024-06-27T19:59:27.793095
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/AS1A10_123T02_9000004160_29035cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29035cztM0_level2_quad_clean.evt
Size (bytes)570,260,160111,375,360
Size543.8 MB 106.2 MB
Events in quadrant A3,037,788760,911
Events in quadrant B3,098,265781,654
Events in quadrant C5,809,940722,533
Events in quadrant D4,925,710695,963

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128681
B0129711
C0215061
D0186911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5895480.814249%
B5896591.000678%
C58963495.919267%
D58963686.241520%

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 7170 5895 0 0 0.00% 0.00%
B 7171 5896 0 0 0.00% 0.00%
C 7171 5897 15 15 0.21% 0.25%
D 7171 5897 290 290 4.04% 4.92%

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 13 254 9018 53.13 786 773 155.2
A 3 137 7045 40.41 786 773 155.2
A 0 226 6778 38.69 786 773 155.2
B 10 245 24181 162.06 779 760 144.5
B 12 111 17209 113.82 779 760 144.5
B 0 190 16415 108.32 779 760 144.5
C 3 233 2686422 15466.73 757 766 173.6
C 14 238 122596 701.62 757 766 173.6
C 2 16 32691 183.86 757 766 173.6
D 1 52 1667774 9406.11 757 739 177.2
D 8 195 229678 1291.77 757 739 177.2
D 7 80 91541 512.34 757 739 177.2

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