ASTROSAT CZTI

Data Quality Report

Orbit 04192

Creation date: 2024-06-27T14:38:35.812943
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_240T01_9000000536_04192cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04192cztM0_level2_quad_clean.evt
Size (bytes)667,938,24066,479,040
Size637.0 MB 63.4 MB
Events in quadrant A5,484,590363,401
Events in quadrant B7,970,713355,154
Events in quadrant C3,012,015432,749
Events in quadrant D3,330,601417,180

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205905
B0280661
C0134173
D0143741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6350109217.196850%
B6351203732.073689%
C6350390.614173%
D6351951.495827%

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 7271 6352 879 879 12.09% 13.84%
B 7271 6352 1642 1642 22.58% 25.85%
C 7271 6352 10 10 0.14% 0.16%
D 7271 6352 55 55 0.76% 0.87%

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 50 2779534 20110.63 662 643 138.2
A 12 247 80938 581.09 662 643 138.2
A 15 234 51698 369.48 662 643 138.2
B 3 0 5576008 49307.41 582 570 113.1
B 10 16 67306 590.19 582 570 113.1
B 15 204 34476 299.85 582 570 113.1
C 9 144 209754 1251.35 714 717 167.0
C 1 16 7527 40.77 714 717 167.0
C 13 61 5845 30.7 714 717 167.0
D 12 110 189179 1078.24 715 694 174.8
D 13 239 189178 1078.23 715 694 174.8
D 12 233 71433 404.67 715 694 174.8

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