ASTROSAT CZTI

Data Quality Report

Orbit 06515

Creation date: 2024-06-27T15:08:17.567487
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/AS1G06_136T02_9000000876_06515cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06515cztM0_level2_quad_clean.evt
Size (bytes)422,153,28075,096,000
Size402.6 MB 71.6 MB
Events in quadrant A2,858,260467,791
Events in quadrant B2,799,894478,001
Events in quadrant C2,636,130469,978
Events in quadrant D4,089,397445,620

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125222
B0123041
C0120881
D0163151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5902961.626567%
B5902891.507963%
C5902450.762453%
D59021903.219248%

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 6887 5903 0 0 0.00% 0.00%
B 6887 5903 9 9 0.13% 0.15%
C 6887 5903 0 0 0.00% 0.00%
D 6887 5903 95 95 1.38% 1.61%

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 15 236 139577 981.31 692 676 141.5
A 8 15 49577 345.48 692 676 141.5
A 0 226 6726 42.74 692 676 141.5
B 0 214 53682 399.14 692 674 132.8
B 4 80 15706 113.19 692 674 132.8
B 0 197 14987 107.77 692 674 132.8
C 4 254 16501 102.65 667 668 154.2
C 1 16 13928 85.97 667 668 154.2
C 13 61 5364 30.45 667 668 154.2
D 11 241 509031 3128.38 664 643 162.5
D 2 152 415294 2551.57 664 643 162.5
D 2 136 238385 1462.95 664 643 162.5

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