ASTROSAT CZTI

Data Quality Report

Orbit 04598

Creation date: 2024-06-27T14:44:09.344295
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/AS1G05_167T02_9000000574_04598cztM0_level2.evt modeM0/AS1G05_167T02_9000000574_04598cztM0_level2_quad_clean.evt
Size (bytes)273,098,88030,067,200
Size260.4 MB 28.7 MB
Events in quadrant A1,756,296167,682
Events in quadrant B1,946,868168,814
Events in quadrant C2,044,310170,137
Events in quadrant D2,285,815156,828

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075702
B080501
C083711
D092281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3481581.666188%
B3481651.867280%
C3481451.292732%
D34811734.969836%

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 4521 3482 2 2 0.04% 0.06%
B 4521 3482 8 8 0.18% 0.23%
C 4521 3482 2 2 0.04% 0.06%
D 4521 3482 110 110 2.43% 3.16%

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 10 253 28869 313.91 438 428 90.6
A 15 174 18891 203.78 438 428 90.6
A 7 16 7777 81.11 438 428 90.6
B 4 48 78471 916.92 439 428 85.1
B 10 16 68675 801.83 439 428 85.1
B 15 204 37202 432.06 439 428 85.1
C 14 48 359381 3520.3 425 428 102.0
C 9 247 17578 168.19 425 428 102.0
C 9 54 4624 41.15 425 428 102.0
D 13 235 586340 5622.41 421 408 104.2
D 7 67 36495 346.28 421 408 104.2
D 2 136 18694 175.47 421 408 104.2

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