ASTROSAT CZTI

Data Quality Report

Orbit 03602

Creation date: 2024-06-27T14:31:29.061883
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/AS1G05_246T04_9000000472_03602cztM0_level2.evt modeM0/AS1G05_246T04_9000000472_03602cztM0_level2_quad_clean.evt
Size (bytes)407,036,16082,258,560
Size388.2 MB 78.4 MB
Events in quadrant A2,991,268526,218
Events in quadrant B3,124,937523,815
Events in quadrant C3,003,493512,062
Events in quadrant D2,791,396501,794

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129522
B0129821
C0129861
D0126831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6117691.128004%
B6117610.997221%
C6117610.997221%
D6117510.833742%

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 7312 6118 8 8 0.11% 0.13%
B 7312 6118 0 0 0.00% 0.00%
C 7312 6118 11 11 0.15% 0.18%
D 7312 6118 11 11 0.15% 0.18%

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 0 50 76148 500.39 735 719 150.7
A 8 15 60585 397.14 735 719 150.7
A 8 4 24333 156.65 735 719 150.7
B 15 204 179516 1250.3 736 716 143.0
B 15 54 17954 120.54 736 716 143.0
B 0 219 16305 109.01 736 716 143.0
C 9 247 102492 625.22 704 708 162.8
C 2 53 98503 600.72 704 708 162.8
C 1 16 29819 178.82 704 708 162.8
D 13 223 71518 415.2 709 689 170.6
D 13 239 15120 84.59 709 689 170.6
D 2 206 12493 69.19 709 689 170.6

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
Veto Counter