ASTROSAT CZTI

Data Quality Report

Orbit 10087

Creation date: 2024-06-27T15:54:51.481123
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/AS1G07_014T01_9000001450_10087cztM0_level2.evt modeM0/AS1G07_014T01_9000001450_10087cztM0_level2_quad_clean.evt
Size (bytes)497,989,440109,618,560
Size474.9 MB 104.5 MB
Events in quadrant A3,301,871734,144
Events in quadrant B3,738,934738,202
Events in quadrant C2,923,758731,026
Events in quadrant D4,697,006684,163

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135792
B0154141
C0128171
D0180171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6192751.211240%
B61921732.793928%
C6192520.839793%
D61924527.299742%

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 7432 6192 0 0 0.00% 0.00%
B 7432 6192 79 79 1.06% 1.28%
C 7432 6192 0 0 0.00% 0.00%
D 7432 6192 342 342 4.60% 5.52%

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 15 298524 1912.27 774 759 155.7
A 13 251 7986 46.41 774 759 155.7
A 0 226 7380 42.52 774 759 155.7
B 4 81 405922 2813.9 767 750 144.0
B 0 214 136311 941.47 767 750 144.0
B 4 174 111533 769.38 767 750 144.0
C 4 175 11901 66.09 739 742 168.8
C 14 234 11154 61.67 739 742 168.8
C 10 22 9791 53.6 739 742 168.8
D 1 52 1156111 5971.25 723 707 193.5
D 8 195 284378 1466.04 723 707 193.5
D 12 110 132443 680.83 723 707 193.5

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