ASTROSAT CZTI

Data Quality Report

Orbit 13116

Creation date: 2024-06-27T16:36:32.565907
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/AS1A04_017T01_9000001932_13116cztM0_level2.evt modeM0/AS1A04_017T01_9000001932_13116cztM0_level2_quad_clean.evt
Size (bytes)894,997,44063,731,520
Size853.5 MB 60.8 MB
Events in quadrant A3,634,569427,519
Events in quadrant B6,556,295326,487
Events in quadrant C3,110,539440,726
Events in quadrant D13,356,573271,331

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148982
B0237041
C0136371
D0442911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66242023.049517%
B6624160024.154589%
C6624801.207729%
D6624397960.069444%

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 7440 6626 61 61 0.82% 0.92%
B 7440 6626 995 995 13.37% 15.02%
C 7440 6626 0 0 0.00% 0.00%
D 7440 6626 3429 3429 46.09% 51.75%

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 15 223 232424 1400.71 805 788 165.4
A 15 239 120903 726.34 805 788 165.4
A 12 189 102494 615.02 805 788 165.4
B 4 239 3763654 27792.93 701 684 135.4
B 12 111 15773 111.45 701 684 135.4
B 0 214 14816 104.38 701 684 135.4
C 0 207 14803 75.42 793 798 185.7
C 13 61 5791 26.89 793 798 185.7
C 14 234 3291 13.43 793 798 185.7
D 13 122 9545213 66347.84 592 576 143.9
D 10 157 1260644 8759.14 592 576 143.9
D 1 52 195053 1351.87 592 576 143.9

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