ASTROSAT CZTI

Data Quality Report

Orbit 28079

Creation date: 2024-06-27T19:47:48.465577
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_073T01_9000004056_28079cztM0_level2.evt modeM0/AS1A10_073T01_9000004056_28079cztM0_level2_quad_clean.evt
Size (bytes)726,045,120122,385,600
Size692.4 MB 116.7 MB
Events in quadrant A3,001,036892,593
Events in quadrant B8,007,948784,359
Events in quadrant C5,623,019808,114
Events in quadrant D4,938,263788,133

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127830
B0280380
C0211070
D0189800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6197130.209779%
B6198165926.766699%
C61983685.937399%
D61984817.760568%

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 7412 6198 0 0 0.00% 0.00%
B 7413 6199 1224 1224 16.51% 19.75%
C 7413 6199 106 106 1.43% 1.71%
D 7413 6199 378 378 5.10% 6.10%

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 0 13 35096 223.94 767 754 153.4
A 13 254 10685 64.76 767 754 153.4
A 3 137 6951 40.41 767 754 153.4
B 10 245 5266037 40977.32 690 674 128.5
B 12 111 15260 113.51 690 674 128.5
B 0 190 14893 110.66 690 674 128.5
C 3 233 2748502 16853.31 707 713 163.0
C 14 238 116530 710.35 707 713 163.0
C 13 61 4875 25.53 707 713 163.0
D 1 52 1552465 9411.15 694 674 164.9
D 8 195 622129 3768.94 694 674 164.9
D 2 250 74376 446.98 694 674 164.9

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