ASTROSAT CZTI

Data Quality Report

Orbit 29574

Creation date: 2024-06-27T20:05:37.584899
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/AS1C05_019T01_9000004264_29574cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29574cztM0_level2_quad_clean.evt
Size (bytes)447,621,12098,196,480
Size426.9 MB 93.6 MB
Events in quadrant A2,749,653652,028
Events in quadrant B3,351,886672,304
Events in quadrant C3,077,469623,471
Events in quadrant D3,977,069614,784

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120361
B0136751
C0129411
D0159891

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5883140.237974%
B5884851.444596%
C58845228.871516%
D58842644.486744%

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 7088 5884 0 0 0.00% 0.00%
B 7089 5885 5 5 0.07% 0.08%
C 7089 5885 0 0 0.00% 0.00%
D 7089 5885 204 204 2.88% 3.47%

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 10734 70.41 710 694 142.6
A 3 137 6733 42.35 710 694 142.6
A 0 226 6037 37.47 710 694 142.6
B 0 189 486024 3646.02 712 694 133.1
B 0 229 30076 220.73 712 694 133.1
B 0 190 21107 153.35 712 694 133.1
C 14 238 267579 1779.04 654 659 150.0
C 14 254 220653 1466.27 654 659 150.0
C 2 114 13029 82.44 654 659 150.0
D 13 104 872432 5524.55 671 652 157.8
D 8 195 290179 1834.76 671 652 157.8
D 12 33 92324 580.93 671 652 157.8

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