ASTROSAT CZTI

Data Quality Report

Orbit 10299

Creation date: 2024-06-27T15:57:36.346476
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/AS1A03_072T01_9000001484_10299cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10299cztM0_level2_quad_clean.evt
Size (bytes)1,372,109,760230,592,960
Size1.3 GB 219.9 MB
Events in quadrant A8,694,3631,461,183
Events in quadrant B10,312,9761,467,024
Events in quadrant C8,639,7631,438,734
Events in quadrant D12,642,4631,326,585

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0386065
B0429394
C0390234
D0496524

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03860
B03860
C03860
D03860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A187161050.561017%
B187163651.950203%
C187161130.603761%
D187168824.712545%

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 20706 18720 3 3 0.01% 0.02%
B 20706 18720 157 157 0.76% 0.84%
C 20706 18721 34 34 0.16% 0.18%
D 20706 18721 750 750 3.62% 4.01%

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 8 15 154490 342.25 2192 2145 445.1
A 5 16 40706 86.63 2192 2145 445.1
A 8 5 25978 53.54 2192 2145 445.1
B 4 239 1184440 2800.85 2195 2140 422.1
B 11 51 267466 628.55 2195 2140 422.1
B 5 255 108853 252.8 2195 2140 422.1
C 4 254 350644 707.01 2116 2126 492.9
C 13 61 16166 28.48 2116 2126 492.9
C 8 128 12281 20.6 2116 2126 492.9
D 12 233 1635010 3295.96 2064 2003 495.5
D 8 195 1224758 2467.93 2064 2003 495.5
D 13 104 1143015 2302.95 2064 2003 495.5

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