ASTROSAT CZTI

Data Quality Report

Orbit 24567

Creation date: 2024-06-27T19:07:22.203912
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_183T01_9000003610_24567cztM0_level2.evt modeM0/AS1T03_183T01_9000003610_24567cztM0_level2_quad_clean.evt
Size (bytes)617,120,640131,526,720
Size588.5 MB 125.4 MB
Events in quadrant A3,429,552904,620
Events in quadrant B3,569,262908,722
Events in quadrant C3,884,352844,712
Events in quadrant D7,301,800806,815

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151972
B0154652
C0164833
D0269852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7458220.294985%
B7458540.724055%
C74571572.105404%
D74573524.720397%

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 7923 7459 0 0 0.00% 0.00%
B 7923 7459 4 4 0.05% 0.05%
C 7922 7458 42 42 0.53% 0.56%
D 7922 7458 293 293 3.70% 3.93%

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 10899 56.26 889 873 178.2
A 3 137 7996 39.97 889 873 178.2
A 0 226 7368 36.45 889 873 178.2
B 12 17 52180 303.25 888 864 169.2
B 12 111 20243 114.52 888 864 169.2
B 11 111 17855 100.41 888 864 169.2
C 7 247 420187 2163.91 839 845 193.8
C 14 238 135439 694.54 839 845 193.8
C 5 112 26518 132.48 839 845 193.8
D 8 195 2915855 14317.97 838 812 203.6
D 12 218 586378 2876.16 838 812 203.6
D 1 255 360711 1767.73 838 812 203.6

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