ASTROSAT CZTI

Data Quality Report

Orbit 42560

Creation date: 2024-06-27T22:41:37.672442
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/AS1C07_001T10_9000005814_42560cztM0_level2.fits modeM0/AS1C07_001T10_9000005814_42560cztM0_level2_quad_clean.evt
Size (bytes)304,427,52089,066,880
Size290.3 MB 84.9 MB
Events in quadrant A2,873,467602,775
Events in quadrant B2,614,786613,867
Events in quadrant C2,368,101584,561
Events in quadrant D3,012,659536,201

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115582
B0112862
C0103112
D0125702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5130110.214425%
B5130621.208577%
C513060.116959%
D51301262.456140%

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 7132 5131 5 5 0.07% 0.10%
B 7132 5131 43 43 0.60% 0.84%
C 7132 5131 1 1 0.01% 0.02%
D 7132 5131 99 99 1.39% 1.93%

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 556902 4732.42 573 561 117.6
A 2 79 86695 732.68 573 561 117.6
A 13 6 9481 75.88 573 561 117.6
B 5 255 135631 1252.61 566 551 107.8
B 0 245 129053 1191.61 566 551 107.8
B 14 252 102803 948.19 566 551 107.8
C 15 214 216901 1702.21 549 550 127.1
C 12 249 6177 44.27 549 550 127.1
C 9 54 3912 26.45 549 550 127.1
D 1 47 235918 1800.38 545 532 130.7
D 1 52 175622 1339.2 545 532 130.7
D 13 249 171928 1310.95 545 532 130.7

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