ASTROSAT CZTI

Data Quality Report

Orbit 42132

Creation date: 2024-06-27T22:37:22.601408
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/AS1A12_088T22_9000005758_42132cztM0_level2.fits modeM0/AS1A12_088T22_9000005758_42132cztM0_level2_quad_clean.evt
Size (bytes)56,188,80015,266,880
Size53.6 MB 14.6 MB
Events in quadrant A560,52899,777
Events in quadrant B434,315105,514
Events in quadrant C450,24196,156
Events in quadrant D557,57887,726

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022291
B019301
C019111
D023421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A95030.315789%
B95010.105263%
C95010.105263%
D950293.052632%

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 950 950 1 1 0.11% 0.11%
B 950 950 0 0 0.00% 0.00%
C 950 950 0 0 0.00% 0.00%
D 950 950 24 24 2.53% 2.53%

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 10 83 155805 6566.43 104 102 23.7
A 10 67 1511 59.42 104 102 23.7
A 3 137 1277 49.55 104 102 23.7
B 5 255 13060 569.52 105 102 22.8
B 0 229 5100 219.67 105 102 22.8
B 12 111 2728 115.42 105 102 22.8
C 15 214 44192 1691.97 103 103 26.1
C 12 249 1750 63.21 103 103 26.1
C 13 61 727 23.95 103 103 26.1
D 13 249 99795 3738.48 99 96 26.7
D 12 6 53172 1990.23 99 96 26.7
D 2 249 15308 570.41 99 96 26.7

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