ASTROSAT CZTI

Data Quality Report

Orbit 10290

Creation date: 2024-06-27T15:57:29.831213
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/AS1A03_072T01_9000001484_10290cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10290cztM0_level2_quad_clean.evt
Size (bytes)366,431,04058,158,720
Size349.5 MB 55.5 MB
Events in quadrant A2,596,421358,242
Events in quadrant B2,465,078335,108
Events in quadrant C2,581,993351,459
Events in quadrant D3,109,797363,067

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02503714483
B02968019732
C02598115260
D02887016491

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248130
B0248136
C0248131
D0238122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258
B03013
C03013
D0257

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5023170.338443%
B4494290.645305%
C5085450.884956%
D545690.164956%

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 7551 5950 0 0 0.00% 0.00%
B 7551 5448 1 1 0.01% 0.02%
C 7551 5974 5 5 0.07% 0.08%
D 7551 5908 0 0 0.00% 0.00%

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 17023 122.13 667 655 134.0
A 0 226 6139 40.92 667 655 134.0
A 8 15 6009 39.95 667 655 134.0
B 4 239 97793 876.34 593 583 110.9
B 11 51 29923 264.5 593 583 110.9
B 0 214 17787 155.09 593 583 110.9
C 4 254 63817 428.67 645 651 147.4
C 13 61 4842 28.44 645 651 147.4
C 14 67 1980 9.02 645 651 147.4
D 8 195 322762 1965.32 690 675 163.9
D 1 52 75321 455.48 690 675 163.9
D 12 233 25278 150.12 690 675 163.9

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