ASTROSAT CZTI

Data Quality Report

Orbit 48006

Creation date: 2024-08-13T22:29:29.028712
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_062T02_9000006384_48006cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_48006cztM0_level2_quad_clean.evt
Size (bytes)691,047,360156,908,160
Size659.0 MB 149.6 MB
Events in quadrant A10,309,7561,014,456
Events in quadrant B4,646,5021,054,687
Events in quadrant C4,977,1201,034,839
Events in quadrant D4,855,048938,408

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02060
B02060
C02060
D02060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0391671
B0213271
C0220871
D0221461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102184444.345273%
B102183183.112155%
C102192082.035424%
D102192692.632352%

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 10238 10219 42 42 0.41% 0.41%
B 10238 10219 16 16 0.16% 0.16%
C 10239 10220 23 23 0.22% 0.23%
D 10239 10220 51 51 0.50% 0.50%

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 5824285 24550.04 1118 1092 237.2
A 0 31 133231 557.08 1118 1092 237.2
A 7 3 26220 105.94 1118 1092 237.2
B 7 221 104971 467.78 1117 1080 222.1
B 5 32 61486 271.98 1117 1080 222.1
B 12 111 28370 122.88 1117 1080 222.1
C 12 250 258833 987.0 1108 1115 261.1
C 14 254 120125 455.78 1108 1115 261.1
C 14 67 106957 405.35 1108 1115 261.1
D 2 249 156679 561.71 1108 1071 277.0
D 11 224 150738 540.27 1108 1071 277.0
D 2 234 53499 189.25 1108 1071 277.0

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