ASTROSAT CZTI

Data Quality Report

Orbit 38799

Creation date: 2024-06-27T21:56:34.392318
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/AS1A12_044T04_9000005396_38799cztM0_level2.fits modeM0/AS1A12_044T04_9000005396_38799cztM0_level2_quad_clean.evt
Size (bytes)326,226,24081,167,040
Size311.1 MB 77.4 MB
Events in quadrant A2,522,723547,430
Events in quadrant B2,557,756553,564
Events in quadrant C2,330,388538,679
Events in quadrant D4,279,576470,896

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105191
B0109651
C0100811
D0160541

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4945130.262892%
B4945931.880688%
C494590.182002%
D49453246.552073%

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 6768 4946 7 7 0.10% 0.14%
B 6768 4946 61 61 0.90% 1.23%
C 6768 4946 4 4 0.06% 0.08%
D 6768 4946 330 330 4.88% 6.67%

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 313328 2840.57 539 527 110.1
A 13 248 63457 571.47 539 527 110.1
A 12 189 45736 410.55 539 527 110.1
B 4 171 350594 3371.45 535 520 103.8
B 5 200 37649 357.58 535 520 103.8
B 0 221 17772 166.15 535 520 103.8
C 15 214 214576 1754.1 525 527 122.0
C 0 10 22053 176.4 525 527 122.0
C 2 16 18456 146.93 525 527 122.0
D 12 235 1290204 10185.36 512 498 126.6
D 13 249 400161 3156.31 512 498 126.6
D 2 16 222123 1750.27 512 498 126.6

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