ASTROSAT CZTI

Data Quality Report

Orbit 42545

Creation date: 2024-06-27T22:41:26.527552
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_102T01_9000005812_42545cztM0_level2.fits modeM0/AS1A12_102T01_9000005812_42545cztM0_level2_quad_clean.evt
Size (bytes)291,041,28091,555,200
Size277.6 MB 87.3 MB
Events in quadrant A2,861,106611,787
Events in quadrant B2,389,707633,131
Events in quadrant C2,447,583600,242
Events in quadrant D2,656,572551,588

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116962
B0109502
C0107742
D0118952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5362130.242447%
B5363110.205109%
C536310.018646%
D5363480.895021%

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 7305 5363 4 4 0.05% 0.07%
B 7306 5364 4 4 0.05% 0.07%
C 7306 5364 0 0 0.00% 0.00%
D 7306 5364 40 40 0.55% 0.75%

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 534995 4458.77 587 575 119.9
A 2 79 33786 277.09 587 575 119.9
A 13 248 11654 92.43 587 575 119.9
B 5 172 59272 523.89 582 568 112.1
B 0 245 22712 197.62 582 568 112.1
B 15 85 14639 125.57 582 568 112.1
C 15 214 226273 1713.43 566 569 131.7
C 14 254 5226 35.35 566 569 131.7
C 3 233 4843 32.45 566 569 131.7
D 1 52 243640 1764.25 564 546 137.8
D 12 6 105451 761.34 564 546 137.8
D 13 249 43198 309.55 564 546 137.8

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