ASTROSAT CZTI

Data Quality Report

Orbit 20240531_A13_053T01_9000006282_level2

Creation date: 2024-06-03T10:54:38.473683
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_053T01_9000006282cztM0_level2.fits modeM0/AS1A13_053T01_9000006282cztM0_level2_quad_clean.evt
Size (bytes)659,833,920697,178,880
Size629.3 MB 664.9 MB
Events in quadrant A3,938,0304,280,271
Events in quadrant B3,464,2083,814,449
Events in quadrant C3,995,6424,197,149
Events in quadrant D3,313,2843,562,272

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015520
B015520
C015520
D015520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02587840
B03489830
C01573300
D02238830

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0890
B0890
C0890
D0890

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7670925793.362057%
B767091903524.814559%
C767105940.774345%
D7671067128.749837%

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 85474 76700 0 0 0.00% 0.00%
B 85474 76685 0 0 0.00% 0.00%
C 85475 76705 0 0 0.00% 0.00%
D 85475 76615 0 0 0.00% 0.00%

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 7 110 3196 8.5 1027 959 263.1
A 0 29 3001 7.76 1027 959 263.1
A 14 95 2979 7.68 1027 959 263.1
B 2 9 3305 13.56 914 870 179.6
B 2 8 2653 9.93 914 870 179.6
B 3 17 2474 8.93 914 870 179.6
C 3 202 3032 7.47 1055 980 274.7
C 1 81 3004 7.37 1055 980 274.7
C 3 203 2975 7.26 1055 980 274.7
D 10 189 2475 6.1 951 863 264.3
D 6 38 2447 5.99 951 863 264.3
D 4 16 2403 5.83 951 863 264.3

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