ASTROSAT CZTI

Data Quality Report

Orbit 28225

Creation date: 2024-06-27T19:49:22.673308
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/AS1C05_019T04_9000004074_28225cztM0_level2.evt modeM0/AS1C05_019T04_9000004074_28225cztM0_level2_quad_clean.evt
Size (bytes)542,952,000122,325,120
Size517.8 MB 116.7 MB
Events in quadrant A3,104,126837,000
Events in quadrant B3,290,154860,340
Events in quadrant C3,262,536817,741
Events in quadrant D6,359,990750,476

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132600
B0137730
C0138100
D0231850

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6293440.699190%
B6293781.239472%
C6294831.318716%
D629471211.312361%

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 7583 6294 0 0 0.00% 0.00%
B 7583 6293 6 6 0.08% 0.10%
C 7584 6295 0 0 0.00% 0.00%
D 7584 6295 733 733 9.67% 11.64%

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 9643 55.64 803 791 159.1
A 3 137 7204 40.31 803 791 159.1
A 0 226 6808 37.82 803 791 159.1
B 10 245 95501 632.24 803 783 149.8
B 0 230 32570 212.18 803 783 149.8
B 12 111 17974 114.75 803 783 149.8
C 14 238 129571 723.59 775 781 178.0
C 3 233 97190 541.66 775 781 178.0
C 1 16 7609 38.36 775 781 178.0
D 1 52 2921220 16423.27 749 726 177.8
D 5 222 359248 2016.13 749 726 177.8
D 2 250 109164 609.8 749 726 177.8

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