ASTROSAT CZTI

Data Quality Report

Orbit 44647

Creation date: 2024-06-27T23:04:51.676684
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/AS1A13_072T01_9000006008_44647cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44647cztM0_level2_quad_clean.evt
Size (bytes)434,226,240109,241,280
Size414.1 MB 104.2 MB
Events in quadrant A5,178,324727,702
Events in quadrant B3,097,998768,462
Events in quadrant C2,971,374730,503
Events in quadrant D4,334,716640,362

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205922
B0136132
C0133732
D0175012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63242313.652751%
B6324791.249209%
C6324200.316256%
D63242894.569892%

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 7559 6325 57 57 0.75% 0.90%
B 7559 6325 37 37 0.49% 0.58%
C 7559 6325 9 9 0.12% 0.14%
D 7559 6325 185 185 2.45% 2.92%

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 1901744 12992.62 708 694 146.3
A 15 223 423870 2892.17 708 694 146.3
A 13 248 80747 547.12 708 694 146.3
B 7 221 91160 657.71 717 698 137.5
B 0 183 71384 513.93 717 698 137.5
B 5 172 47200 338.1 717 698 137.5
C 14 254 73521 441.83 707 711 164.8
C 15 252 58218 348.97 707 711 164.8
C 3 233 44121 263.42 707 711 164.8
D 13 249 554228 3237.02 683 663 171.0
D 1 52 382250 2231.37 683 663 171.0
D 2 249 375511 2191.96 683 663 171.0

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