ASTROSAT CZTI

Data Quality Report

Orbit 43072

Creation date: 2024-06-27T22:47:39.226439
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/AS1C07_001T10_9000005844_43072cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43072cztM0_level2_quad_clean.evt
Size (bytes)332,150,40087,693,120
Size316.8 MB 83.6 MB
Events in quadrant A3,323,081584,731
Events in quadrant B2,603,812598,626
Events in quadrant C2,449,126571,709
Events in quadrant D3,499,751523,179

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132832
B0114733
C0108252
D0142342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53831232.284971%
B5382230.427350%
C538240.074322%
D53821753.251579%

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 6995 5384 86 86 1.23% 1.60%
B 6994 5383 13 13 0.19% 0.24%
C 6994 5383 1 1 0.01% 0.02%
D 6994 5383 173 173 2.47% 3.21%

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 612826 5305.68 564 551 115.4
A 15 237 379146 3280.72 564 551 115.4
A 12 189 65555 563.29 564 551 115.4
B 0 186 88125 798.28 570 555 109.7
B 0 229 86705 785.34 570 555 109.7
B 5 255 77885 704.94 570 555 109.7
C 15 214 241386 1835.89 560 563 131.2
C 1 128 8312 59.07 560 563 131.2
C 12 2 6125 42.4 560 563 131.2
D 1 52 528494 3886.85 556 539 135.8
D 13 249 507516 3732.41 556 539 135.8
D 5 32 188356 1382.73 556 539 135.8

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