ASTROSAT CZTI

Data Quality Report

Orbit 20151105_P01_014T01_9000000080_level2

Creation date: 2025-01-04T20:52:02.022316
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/AS1P01_014T01_9000000080cztM0_level2.fits modeM0/AS1P01_014T01_9000000080cztM0_level2_quad_clean.evt
Size (bytes)286,473,600419,892,480
Size273.2 MB 400.4 MB
Events in quadrant A1,596,8322,594,591
Events in quadrant B1,625,0362,689,350
Events in quadrant C1,592,7162,577,039
Events in quadrant D1,353,9102,350,326

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01631100
B01528650
C01463360
D01545700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01730
B01730
C01730
D01730

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07480
B07480
C07480
D07480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3648512803.508291%
B36485760.208305%
C364855731.570508%
D364854901.343018%

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 53728 36482 0 0 0.00% 0.00%
B 53728 36485 0 0 0.00% 0.00%
C 53728 36480 0 0 0.00% 0.00%
D 53728 36484 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 1496 11.19 414 388 99.0
A 0 29 1471 10.94 414 388 99.0
A 0 30 1141 7.61 414 388 99.0
B 2 9 1338 12.34 429 411 75.1
B 14 254 1071 8.79 429 411 75.1
B 2 8 1044 8.43 429 411 75.1
C 12 241 1117 7.05 420 390 103.1
C 1 81 1089 6.78 420 390 103.1
C 2 191 1075 6.64 420 390 103.1
D 6 44 1053 7.47 386 356 93.3
D 6 231 1044 7.38 386 356 93.3
D 11 82 992 6.82 386 356 93.3

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