ASTROSAT CZTI

Data Quality Report

Orbit 42678

Creation date: 2024-06-27T22:42:56.959058
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/AS1A05_013T01_9000005822_42678cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42678cztM0_level2_quad_clean.evt
Size (bytes)329,592,96091,673,280
Size314.3 MB 87.4 MB
Events in quadrant A3,160,464624,693
Events in quadrant B2,608,662646,852
Events in quadrant C2,686,844606,535
Events in quadrant D3,349,855543,233

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123312
B0108122
C0106802
D0132962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5065661.303060%
B5066240.473747%
C5066330.651402%
D50662174.283458%

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 7187 5066 50 50 0.70% 0.99%
B 7188 5067 14 14 0.19% 0.28%
C 7188 5067 1 1 0.01% 0.02%
D 7188 5067 200 200 2.78% 3.95%

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 555090 4586.49 597 585 120.9
A 13 248 188763 1556.48 597 585 120.9
A 15 223 65380 535.94 597 585 120.9
B 0 245 65305 566.25 594 580 114.3
B 3 112 39611 341.46 594 580 114.3
B 15 85 33861 291.16 594 580 114.3
C 15 214 213796 1587.34 582 586 134.3
C 8 79 105897 784.04 582 586 134.3
C 14 254 30940 225.98 582 586 134.3
D 2 249 550733 3968.98 574 558 138.6
D 5 70 132526 952.02 574 558 138.6
D 1 47 111201 798.18 574 558 138.6

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