ASTROSAT CZTI

Data Quality Report

Orbit 43020

Creation date: 2024-06-27T22:47:00.248663
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/AS1T05_148T01_9000005838_43020cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43020cztM0_level2_quad_clean.evt
Size (bytes)463,749,120111,127,680
Size442.3 MB 106.0 MB
Events in quadrant A3,509,285805,451
Events in quadrant B4,166,743783,772
Events in quadrant C2,968,364779,131
Events in quadrant D6,067,378587,729

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138112
B0160872
C0119082
D0218852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5849290.495811%
B58493676.274577%
C584960.102582%
D5849109018.635664%

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 9043 5851 12 12 0.13% 0.21%
B 9043 5851 262 262 2.90% 4.48%
C 9043 5851 1 1 0.01% 0.02%
D 9043 5851 779 779 8.61% 13.31%

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 10 83 614175 3977.13 710 698 154.3
A 15 237 81636 524.71 710 698 154.3
A 13 248 58694 375.98 710 698 154.3
B 0 186 817199 5706.8 689 674 143.1
B 3 112 626319 4372.72 689 674 143.1
B 15 85 18185 122.39 689 674 143.1
C 15 214 255100 1479.56 691 697 171.9
C 7 220 12567 69.03 691 697 171.9
C 4 0 8066 42.86 691 697 171.9
D 1 52 2354009 14730.58 621 603 159.8
D 13 249 1133835 7093.19 621 603 159.8
D 12 233 51227 316.87 621 603 159.8

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