ASTROSAT CZTI

Data Quality Report

Orbit 09982

Creation date: 2024-06-27T15:53:18.878332
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/AS1G07_074T01_9000001426_09982cztM0_level2.evt modeM0/AS1G07_074T01_9000001426_09982cztM0_level2_quad_clean.evt
Size (bytes)509,022,72087,560,640
Size485.4 MB 83.5 MB
Events in quadrant A4,173,040556,232
Events in quadrant B3,539,171565,355
Events in quadrant C2,637,172570,107
Events in quadrant D4,657,175538,217

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01661359
B01471840
C01228115
D01825469

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60323425.669761%
B60361622.683897%
C6042280.463423%
D60301853.067993%

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 7044 6048 148 148 2.10% 2.45%
B 7044 6048 113 113 1.60% 1.87%
C 7044 6049 0 0 0.00% 0.00%
D 7044 6047 102 102 1.45% 1.69%

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 13 251 1339323 9477.65 693 678 141.2
A 15 174 108651 764.45 693 678 141.2
A 8 15 48334 337.41 693 678 141.2
B 0 85 378537 2794.58 697 683 135.2
B 0 214 171983 1266.92 697 683 135.2
B 4 239 67634 495.16 697 683 135.2
C 13 61 4999 27.42 673 676 157.7
C 8 208 4913 26.87 673 676 157.7
C 8 222 3357 17.0 673 676 157.7
D 1 52 699863 3912.97 664 648 178.7
D 2 16 661514 3698.36 664 648 178.7
D 8 195 546039 3052.13 664 648 178.7

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