ASTROSAT CZTI

Data Quality Report

Orbit 38072

Creation date: 2024-06-27T21:48:05.885537
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/AS1A11_047T09_9000005362_38072cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38072cztM0_level2_quad_clean.evt
Size (bytes)317,001,60096,845,760
Size302.3 MB 92.4 MB
Events in quadrant A2,800,756661,418
Events in quadrant B2,677,920680,448
Events in quadrant C2,706,926640,001
Events in quadrant D3,139,229582,647

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114753
B0113142
C0110702
D0129022

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A525570.133206%
B5255240.456708%
C5255150.285442%
D5255981.864891%

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 7378 5256 3 3 0.04% 0.06%
B 7378 5256 16 16 0.22% 0.30%
C 7378 5256 8 8 0.11% 0.15%
D 7378 5256 75 75 1.02% 1.43%

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 353816 2818.56 625 614 125.3
A 10 248 7344 53.71 625 614 125.3
A 13 6 7250 52.96 625 614 125.3
B 5 172 72597 607.23 624 610 118.5
B 4 171 46063 383.41 624 610 118.5
B 0 229 23265 191.1 624 610 118.5
C 15 214 218156 1533.34 607 613 141.9
C 0 10 62359 435.21 607 613 141.9
C 14 67 28582 197.14 607 613 141.9
D 13 249 227646 1553.58 600 585 146.2
D 1 52 195305 1332.3 600 585 146.2
D 12 233 120274 818.93 600 585 146.2

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