ASTROSAT CZTI

Data Quality Report

Orbit 10944

Creation date: 2024-06-27T16:06:02.168179
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/AS1C03_013T01_9000001586_10944cztM0_level2.evt modeM0/AS1C03_013T01_9000001586_10944cztM0_level2_quad_clean.evt
Size (bytes)486,336,96063,118,080
Size463.8 MB 60.2 MB
Events in quadrant A3,525,147375,156
Events in quadrant B4,558,942371,051
Events in quadrant C2,872,974378,652
Events in quadrant D3,361,431364,273

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143252
B0172671
C0124641
D0139511

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60352143.545982%
B603564910.753935%
C6035761.259321%
D60351903.148302%

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 7070 6035 65 65 0.92% 1.08%
B 7070 6035 424 424 6.00% 7.03%
C 7070 6036 0 0 0.00% 0.00%
D 7070 6036 67 67 0.95% 1.11%

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 8 5 541330 3509.03 751 735 154.1
A 13 210 32324 205.05 751 735 154.1
A 14 238 26580 167.76 751 735 154.1
B 4 239 1626537 11590.36 731 714 140.3
B 0 214 28409 197.44 731 714 140.3
B 0 187 19527 134.12 731 714 140.3
C 13 61 5631 28.46 735 738 171.9
C 8 222 2673 11.25 735 738 171.9
C 5 207 2664 11.2 735 738 171.9
D 1 52 267431 1520.08 728 708 175.5
D 5 97 104677 592.53 728 708 175.5
D 5 222 101379 573.73 728 708 175.5

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