ASTROSAT CZTI

Data Quality Report

Orbit 39963

Creation date: 2024-06-27T22:10:38.916437
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_001T01_9000005514_39963cztM0_level2.fits modeM0/AS1C07_001T01_9000005514_39963cztM0_level2_quad_clean.evt
Size (bytes)136,016,64039,605,760
Size129.7 MB 37.8 MB
Events in quadrant A1,204,173261,384
Events in quadrant B1,162,984265,319
Events in quadrant C1,119,017258,268
Events in quadrant D1,353,760237,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054111
B053781
C050931
D059461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2472220.889968%
B2472291.173139%
C247260.242718%
D2472542.184466%

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 2472 2472 15 15 0.61% 0.61%
B 2472 2472 20 20 0.81% 0.81%
C 2472 2472 5 5 0.20% 0.20%
D 2472 2472 40 40 1.62% 1.62%

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 212357 4066.95 245 239 52.2
A 13 248 38220 728.21 245 239 52.2
A 9 191 3552 63.52 245 239 52.2
B 5 255 104939 2133.0 247 240 49.1
B 4 171 75925 1541.9 247 240 49.1
B 5 63 6145 120.3 247 240 49.1
C 15 214 104826 1778.75 246 248 58.8
C 9 54 25691 432.76 246 248 58.8
C 0 10 19402 325.79 246 248 58.8
D 12 227 227227 3771.4 238 230 60.2
D 1 47 78642 1302.76 238 230 60.2
D 2 250 63694 1054.41 238 230 60.2

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