ASTROSAT CZTI

Data Quality Report

Orbit 40213

Creation date: 2024-06-27T22:13:39.627260
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_9000005532_40213cztM0_level2.fits modeM0/AS1C07_001T01_9000005532_40213cztM0_level2_quad_clean.evt
Size (bytes)297,362,88089,899,200
Size283.6 MB 85.7 MB
Events in quadrant A2,732,457602,068
Events in quadrant B2,400,031625,934
Events in quadrant C2,534,475603,380
Events in quadrant D2,954,545543,984

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113103
B0105352
C0105832
D0123112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4950180.363636%
B495090.181818%
C4950210.424242%
D49501142.303030%

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 6923 4951 10 10 0.14% 0.20%
B 6923 4951 2 2 0.03% 0.04%
C 6923 4951 11 11 0.16% 0.22%
D 6923 4951 97 97 1.40% 1.96%

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 465529 4100.86 560 549 113.4
A 13 248 87428 766.22 560 549 113.4
A 13 254 6788 55.02 560 549 113.4
B 0 229 51378 474.8 566 551 107.0
B 0 245 43129 397.74 566 551 107.0
B 4 171 29149 267.15 566 551 107.0
C 15 214 212616 1639.55 560 564 129.3
C 0 10 69869 535.86 560 564 129.3
C 9 187 30121 228.53 560 564 129.3
D 12 227 348802 2617.93 549 533 133.0
D 12 218 207509 1555.83 549 533 133.0
D 13 249 117369 878.25 549 533 133.0

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