ASTROSAT CZTI

Data Quality Report

Orbit 30055

Creation date: 2024-06-27T20:10:24.528256
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/AS1A10_071T07_9000004322_30055cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30055cztM0_level2_quad_clean.evt
Size (bytes)419,843,52060,865,920
Size400.4 MB 58.0 MB
Events in quadrant A2,621,585382,846
Events in quadrant B4,030,225379,068
Events in quadrant C3,051,410351,247
Events in quadrant D2,658,721365,966

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111291
B0160351
C0123391
D0112521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51892625.049142%
B51893937.573714%
C51894929.481596%
D51892003.854307%

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 5214 5190 0 0 0.00% 0.00%
B 5214 5190 4 4 0.08% 0.08%
C 5214 5190 112 112 2.15% 2.16%
D 5214 5190 6 6 0.12% 0.12%

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 13 254 9778 64.79 679 663 140.7
A 3 137 7328 47.37 679 663 140.7
A 0 226 5770 36.3 679 663 140.7
B 6 159 1427150 10853.46 656 639 131.4
B 5 250 16951 124.11 656 639 131.4
B 12 111 16769 122.72 656 639 131.4
C 15 208 404237 2660.28 628 632 151.7
C 14 238 103957 681.05 628 632 151.7
C 3 233 70495 460.49 628 632 151.7
D 8 195 123607 782.47 655 641 157.2
D 7 223 22553 139.43 655 641 157.2
D 2 234 21572 133.19 655 641 157.2

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