ASTROSAT CZTI

Data Quality Report

Orbit 43080

Creation date: 2024-06-27T22:47:44.257297
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/AS1C07_001T10_9000005844_43080cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43080cztM0_level2_quad_clean.evt
Size (bytes)324,504,00087,030,720
Size309.5 MB 83.0 MB
Events in quadrant A3,999,119566,667
Events in quadrant B2,643,525601,975
Events in quadrant C2,450,919566,918
Events in quadrant D2,509,173531,742

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150772
B0113942
C0106922
D0112412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52493216.115451%
B5250561.066667%
C525080.152381%
D5250200.380952%

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 7042 5250 242 242 3.44% 4.61%
B 7043 5251 34 34 0.48% 0.65%
C 7043 5251 6 6 0.09% 0.11%
D 7043 5251 18 18 0.26% 0.34%

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 15 237 1206385 10277.73 566 553 117.3
A 10 83 561261 4779.11 566 553 117.3
A 12 189 28296 236.46 566 553 117.3
B 5 255 216878 1966.76 570 555 110.0
B 0 229 147306 1334.23 570 555 110.0
B 0 189 15481 135.7 570 555 110.0
C 15 214 238064 1836.1 553 556 129.4
C 14 254 43138 329.19 553 556 129.4
C 1 241 5312 36.77 553 556 129.4
D 1 52 187742 1372.72 559 543 136.4
D 13 249 53043 384.98 559 543 136.4
D 12 233 52371 380.05 559 543 136.4

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